Battery life

Android hardware improves at an incredible rate. It seems like yesterday we all were ecstatic about the release of the HTC EVO 4G with it's 4.3-inch display, 1GHz CPU, and front facing camera. I know I waited in line the first day to get mine, and plenty of other smartphone lovers did the same. But look at phones today -- if the OG EVO were to be released tomorrow, we would have to call it "low-end" based on specs of upcoming devices. It's crazy.

While screens, processors, and the OS itself seem to iterate as fast as we can think about it, one thing has lagged behind -- battery technology. Gone are the days when you charged your cell phone every other day, and most of us put our phones on the charger every night (or more often). It's just how it has to be, and there's no use arguing about it. Until recent devices like the Motorola Droid RAZR and the upcoming HTC One series, we've had the luxury to carry a spare battery along if we think we'll need it. As we squeeze more into our phones, we may see a removable battery as the exception and not the rule. We'll have to adapt as best we can, and of course batteries will be bigger and slightly more efficient. But just how important is having a removable battery to you? When we ask ourselves these questions, and want to know the answers, we ask. Let us know in the poll, and comment after the break if you need to expand your answer a bit.



Reader comments

Late-night poll: How important is a removable battery to you?


Oh lord. Say hello to many new dead phones!

I can see it now. "Frozen phone requires battery depletion to restart."

No battery pull = a flasher's nightmare :(

if they reset like they do on my Xoom , not a problem with the power and volume push at the same time trick. So that alone would not bother me.

Place one finger on one side, and another finger on another side. Now press down.

It's plastic, not an unyielding piece of solid steel.

Most rocker switches aren't really rocker switches, although I think this is poor design. The whole point of a rocker switch is to make it impossible to press both ends simultaneously.

Hasnt hurt ppl that flash ROMs on tablets yet.

I thought I needed removable batteries, until I was put in a position to actually think about it.

External battery means never having to power off the phone to add more juice. Externals like the Anker are so small.....non removable batteries wont be that big of a deal as some may think.

I have a RAZR...and even if my next phone has a removable battery....I will get something like the Anker 5500 mAh external. There is not one spare battery out that can match 5500 mAh...

That doesn't fix the being able to do a cold reboot when the phone has a software problem. I have to do that a couple times a week. Pull the battery out that is, and when the software is locked up, pushing buttons doesn't do a thing for it.

Sometimes I just forget to plug my phone in, I have a dock for a spare battery , so I just grab a charged one. Yes having a long lasting mega battery would be appealing like on the DRazor MAxx, and I have and external charger, I just like the power especially only plane to pop in a new battery, and what if the internal battery goes bad and starts to not hold the charge?

I have 10 and 12 hour days, my GSII Skyrocket is good for 6 or 8 hours at which time I have to change the battery, I carrt 2 spares, my iPhone used to get about the same battery life but when it died I had to find a place to plug it in or take a loooong trip in a cab, I cant have a phone with a fixed battery, I an not aleays near a 110 volt outlet or car charger.

There is usually a way to hard reset them. My transformer prime had a little hole for a paperclip that would reset it if it was frozen.

I go though batteries like crazzzzy! I am on my fourth one in my Dinc (heavy user), when I had a, um, ya, that other POS by a fruity company, it only lasted 9 months before it wouldn't hold a charge. ANY IT LOCKED UP! Sooo, VERY! As much as I would LOOOVE the max, it seems like too much of a pain, and not enough CPU.

I would love to know what the fuck you are doing to go through any battery's charge cycles in 8-9 months. That's insane to me.

By the way, you can say iPhone. It's not Voldemort.

So long as there is an alternate way to reboot a frozen phone, or better yet, if my phone never froze in the first place, but that is the price you pay for playing with ROMs :P

I was concerned about it before I bought the MAXX, but so far I haven't run into any problems. The only weird things is seeing 20% and thinking I need to charge immediately, but still having a few hours left :-)

Won't buy a phone without it, which is one reason why I've got a Bionic instead of a Razr or Razr Maxx. It's starting to seem like removable batteries is a dying feature.

I use my Droid Charge a LOT!!! Whether it's Stitcher internet radio, news videos, FB, regular web browsing, but if I really need to make my batter last, and I'm too busy to actually use my phone, then I turn GPS & mobile data off and it lasts a loooong time.

Yes dedinitely! Aside from being able to carry a spare, the last 3 devicea I've had over the last 4 years Have all needed to have the battery pulled at least once. There have been times where pushing the correct combo of hardware buttons to reboot did absolutely nothing

Try that with a bad lock ring installation. Oh yea, it'll reboot it. But you're still stuck trying to get past the bad lock ring install. I had to pull the battery. EVO3D.
I needed to get back to recovery to do a restore.

I'd say a non removable battery is a deal breaker for me unless the phone had some other outstanding specs to make up for it. I have no mercy for my Galaxy Nexus and use it like it was intended. I get a consistent 6-7 hrs on it and if I need to I pop in an extra battery I got. Whether it be long trips, bike rides, days, whatever, I like the comfort of having a spare battery or two with me. There's nothing better than seeing a full battery in the middle of the day :)

On the Razr Maxx the battery won't be full midday, but it'll still last all day (and possibly all night). That's just my experience. Battery life was my #1 concern, thus I have a Razr Maxx.

Loving my Nexus, with an extra standard battery. It comes with a small charging cradle. I have 3700 mAh of juice, and my phone never has to be tethered to a wall. I used to just rely on chargers with previous phones. Now, I cannot imagine a day without the convenience of extra juice, without having to charge the phone. Freedom!

I have 3 batteries i go through. I hate it when i see my battery at 30% and Im really glad for removable batteries. No need to plug into a wall and sit and wait to charge. I think this time around im not getting an HTC due to non removable battery. I dont wanna end up like my iphone friends looking for an outlet everytime theyre almost out of battery. Specially when were out on a trip.

I used to believe like most of you but then I got the RAZR (not even the Max) and honestly I have only completely killed the battery once in the months I have had it (got it thanksgiving week). Same with my Droid 4. And more often than not even with this issue I still end my day with greater than 50% of my battery and that just isn't the case with amy of my other phones that DO have removable batteries. So to me a non removable battery is an irritant but it wont prevent me from buying a phone.

But for how long? It may last for your needs now but how will it be in the final 6 months of a 2 year contract?

I'm Canadian. Which means 3 year contracts. A sealed phone means if there are issues with the battery (outside of the first year) I have to spring for a new phone. Obviously it's cheaper to replace a defective battery.

As well (as others have stated) its nice to be able to have a charged spare battery, or be able to purchase an extended battery if need be.

Its pretty much a deal breaker for me, although it wouldn't surprise me if the sealed battery became much more common.

I wouldn't mind giving up my removable battery if it was done right like with the Razr Maxx. If I had a thin phone, with more than 3300mAh I'd be more than happy.

I'll take non-removable if they start putting acceptable sized batteries in these things... Its ridiculous making a sealed compartment with a 1800mAh battery that can't last you a day. I don't need to hot-swap batteries to use my device.

I have the Motorola Photon. Rooted n Locked, with the stock 1500mAh battery, after removing the Sprint bloatware and freezing a few inadequate apps n processes, I can sqeeze at least 50 hours of usage (not calling) into it before it would shut off from NO power.

I can drop this f**ker and not have to worry about the battery falling out because how the back was designed. I dropped my Epic4G today and the whole damn thing came apart. I carry 2 spares for it. Not cool. Not to mention I get a day's usage out of it, max. But I use it because of the hardware keyboard.

What I'm trying to say is, the removable battery aspect is nice if you have to go through multiple batteries due to a crappy setup. But if it's not necessary, then I'm all for the non-removable ones. If it gets usage time like the Maxx or whatever, then it can stay with the phone for all I'm concerned. There are apps that will let me text from the computer and take calls there too so I don't have to be worried about being tethered to the handset.

I buy alot of my phones second hand so it needs to have a removable battery. The phones I get are one to two years old they may need a replacement battery. Also I like to upgrade the battery to either a seidio or mugen extended. I get the ones that look the same but has more milliamp hours. I like to use otterboxes on my phones.

Seriously? Um, I think Jerry was saying in comparison to today's devices, the OG EVO would be considered low-end. But that doesn't mean it is a low-end device. My OG EVO (along with many others in the XDA forums) is still running with the big dogs and it still has developers behind it. WOW!

I just barely started taking advantage of removable batteries last month. I don't think I could go without it anymore. When I'm out all day because of school and work I don't see one single battery lasting me, so I need to be able to pop in a new one.

I switched to a Razr Maxx from a Droid Charge and couldn't be happier. I was concerned about not being able to remove it at first but having a 3300mah battery in this 8mm thick phone is absolute heaven now. It took me 26 hours to run it down the other day. I'm averaging 15 to 18 with moderately heavy use. I saw a video on you tube showing how it comes apart so replacing a battery after the warranty is up shouldnt be a problem if needed. I'm typing on it now and it's been running for 7 hours and shows 90%. The battery in this thing is bigger than the one in the Galaxy Note. Nothing beats this phone. Removable battery not ever required again:-)

I can't imagine not having the option, but non-removable that is "big enough" would be fine.

I have 4 batteries. Why? Cuz I won one from Android Central (thanks guys) and two came with my wall charger that was $9.

Two would likely be enough, but during a recent 3day power outage those extra batteries sure came in handy.

I definitely prefer removable batteries, and if you had asked me a few months ago I would have said I would never consider anything else. I had 2 extra batteries for my Droid Charge and it was great because I could get through most of the day on one battery, then change it out late afternoon, and put the third battery in my pocket for piece of mind if I was going out at night.

But then Verizon swapped out my Charge for a Razr, and I honestly haven't missed the removable battery. I use my phone ALOT, and this is not the Maxx version. Yet I can use my phone pretty heavily most of the day, plug it up for a little over half an hour, and get through some pretty late nights. Granted, there are days when I plug it up at 2 different times, but its usually just because I'm paranoid and like to keep it above 50 percent, rather than actually needing to charge it. So sure there are times when it would be more convenient to just swap batteries, but if a phone has good battery life and charges fast you really can save the expense and hassle of carrying extra batteries with you.

That being said, I still prefer user-replaceable batteries, as I am a flash-aholic, and even hardkey combos are not as surefire of a reset method as is a battery pull. Not to mention the obvious fact that no matter how good a phone's battery life is, it can always be doubled if you can buy extra batteries. Mainly I just don't like the idea that they're taking away my choice to buy spares, an upgrade, or simply a replacement after a year or so.

But I do understand that a non-replaceable battery allows for a thinner phone with higher battery capacity. Everyone says they don't want a thin phone until they actually get one. I could never stand the idea of those "extended" batteries that bulge out the back, but I liked the thickness of my Charge just fine. But the Razr really is a joy to hold and use, I still marvel at its thinness a few months after I got it. It slides effortlessly into a front jeans pocket, and you often forget its even there. If someone like myself, who researches the crap out of devices and cares more about specs and dev support than design can get this excited about a thin phone, imagine the effect it has on Joe Consumer? I'll probably upgrade this to a Maxx battery and rear housing (it is most definitely user-replaceable, just requires some tools), and the phone will still be thinner than most and I don't forsee ever really wishing I could swap the batteries.

I really do hope that manufacturers keep making user-replaceable batteries, while finding a way to keep it all nice and thin. There are a number of advantages to doing so. However, the fact is the device can be thinner and have higher mah without it, and those 2 things tend to be more noticeable to the average person in day to day use, and honestly even to knowledgeable enthusiasts like myself. So I would not be surprised if more top-tier devices do away with removable batteries in the future. As long as it had enough capacity to get through a full day and night no matter what while making up for it in other ways (thin design, more resistant to the elements, etc, a la Razr Maxx) I think I'd be willing to accept that. Provided of course, that like the Razr family, the battery still can be replaced on down the line by a competent user, so I'm not left with a dead phone should I decide to keep it for a few years.

This is a non-issue for me. Being able to switch batteries is a must! I can't imagine getting stuck with a bad battery and not being able to replace OR getting a bigger capacity battery!

On certain trips I go for extra long (15-25 hours) periods of heavy use without access to an outlet, generally with portable hotspot on which makes it even worse. Easily 4-5 batteries.

If it wasn't for removable batteries, I'd use a portable charger.

100% Removable batt! Have you ever imagine or experienced non-removable batt failing inside the device, leaks, bloated, aging or loosing its ability to recharge?

I did.. And i swear i will never buy such device.. and yes including all the apple products..

removable battery mechanism is a problem not because of the fear of short battery life. you can get a juice pack (or you should get a juice pack instead because it works for many phones).
what makes it a problem is that when you flash your phone and you go into a bootloop then you get a dead phone.
so unless custom roms aren't your thing i guess having a non-removable battery makes no difference

I have a spare battery. I think it's charged up, but never put it in. My lifestyle doesn't take me too far from an outlet. I wouldn't mind a big honking non removable battery like the Maxx has.

Non-removable was an issue for me until I found out about the portable battery packs. That allowed the Razr Maxx to creep back into the picture when I was heavily leaning towards the Nexus. Went with the Maxx and learned I don't need an portable charger...the battery is ridiculous. This thing is better than I dreamed. Since battery life was THe most important factor for me, I went with the Razr Maxx. No regrets and no issues with a non-removable battery.

Two simple but firm reasons against having a non-removable battery:
1. spare batteries are more convenient than external chargers. (unless every phone is like RAZR MAXX, problem is they aren't. I'm looking at HTC)
2. to unplug when you do something bad to your phone. (Or the phone is so poorly manufactured that it dies.)
That's it. Unless I have no choice my next phone will surely have a removable battery.

Removable/Swappable batteries is a must. Doing anything where you move in and out of high signal areas drains any battery rapidly, especially if you do things like weekend trips camping. Those power packs just don't have the juice to quickly charge a dead battery and get you up and running unless you want that extra brick hanging off your phone while you use it.

I have chargers in my living room, bedroom, office desk, and in my car... those are the four spots I spend most of my day in... I really don't see why someone needs to carry two spare batteries lol

I thought lithium batteries still have a limit/life to the amount of charge cycles?

Meaning, once you've charged it "X" amount of times, it's done. With my iPod touch by example, it ran $79+ to replace the perm battery and I had to ship it back. I cant find "repair" charges for battery replacement for the Maxx over on Moto's site or via Google. I've owned some 18 devices in the last 25 years, and each one has eventually needed a new battery when the original stopped holding a charge.

Help me out here because a removable battery has always been a "must have" feature for me. I'm not planning to carry around an extra battery or power pack.

*THIS*. That or they can bind 3 years free battery replacement to the warranty. Anything else is a non-starter.

Exactly. I've never had a phone battery last more than 18 months or so. Usually batteries are only good for a few hundred charges before rapidly degrading. If you charge every night, that's only about a year you can depend on. Most contracts today are two years.

Like most people, I don't care about having a spare battery. However I do care about being able to easily replace the battery while still in contract.

The RAZR MAXX is the only non-removable battery that has been sufficient for an LTE phone. Too bad it is in bootloader lockdown hell. We will have to wait and see how the new HTC phones do, but I do not believe that those batteries will be sufficient for all day use.

Instead of having removable batteries I have a battery case (the kind that double up as protective cases), I like it because I can slip in and out of it at will, and it charges the full battery, which essentially doubles the ability to run the entire day...

I think when you get a phone like Razr Maxx, a non-stock device, you almost always must expect bootloader lockdown hell, in my opinion.

A non-user-replaceable battery means two things to me: 1) regardless of battery capacity, the phone must be plugged in somewhere or connected to an external battery to be charged, and 2) I can't replace the battery when it inevitably experiences decreased life due to age.

The former prevents or inhibits portability of the phone, meaning I can't keep the phone with (on) me while it's charging. This is NOT going to happen outside my own home, or possibly a hotel room while I'm in the room. The latter unnecessarily ties the entirety of the hardware to the only component that has a limited life by design, requiring the user to either replace the entire device, or be without it during a manufacturer-performed battery replacement, when the battery no longer has a useful life.

Both of these are deal breakers to me.

Manufacturers need to get their heads out of their a**es and realize that having the thinnest device is not the holy grail of device design. I would much rather have a slightly thicker, sturdier device with slightly lower battery life and a user-replaceable battery than have a slightly thinner, more frail device with slightly longer battery life and a non-user-replaceable battery.

You know it is possible to replace a battery even it is non removable don't you? So the argument about what happens when the battery needs replacing because it doesn't hold a charge isn't valid.

Of course it's possible, if you are willing to pay a fee that's more than the phone is probably worth at that point and be without a phone for awhile. Or void your warranty and attempt it yourself, which is beyond the ability of most consumers.

What fee? Buy the parts and replace it yourself. It isn't rocket science and really isn't that hard. If iPhone users can do it, I am sure android users can figure it out. Unless you mean to say iPhone users are smarter.

Yes. Gotta have a removable battery. I don't really swap out batteries a lot, but I prefer having the option to do so than not.

Removable batteries are a great thing. When the phone is hung and there is no other recourse, removing the battery always reboots the phone. Also, if the battery just decides to not charge anymore, you have the ability to replace it without replacing the whole phone. I've had to do this once before I got the Android, but it always worries me with any electronics where I can't remove the battery.

Plus sometimes I have my Ipod Touch as a backup to do certain things like play lonnnnnnggg games of Poker and check some prices on Ebay, things like that, so it does help ease the need to depend on my smartphone all the time.

I SO miss my EVO 4G. Still an awesome phone. I had a Seidio for that one and could get two days out of it with heavy use. Now, I have a Photon. Really, really nice phone, but if I touch it at all, I get about 6 hours out of the battery. I can't always take the time to plug it in, so I either need to carry a second battery or I'm going to have to break down and give up the nice, thin design for another Seidio.

So yeah, if the phone doesn't have a removable battery, it's not even a consideration for me, no matter how awesome it's supposed to be.

As a former iPhone user who experienced three dead batteries in two iPhones, a removable battery is required now. And one that doesn't require any special tools to replace it either.

I don't care about removable batteries beyond pulling it in a boot loop. My G2 lasts all day with 3 hours of on screen time so I don't need a removable battery.

A removable battery is a requirement for me for two reasons; never needing to tether the phone to any type of charge/charger, just swap out for a fresh battery and go. Second is to easily replace a failed battery! I don't see that changing for me unless battery tech comes up with a power source that can recharge within minutes and has little to zero failure rate.

Without a replaceable battery it is just a Crapple! There are many advantages to a replaceable battery. I can't think of one advantage of a non replaceable battery. Even my old flip and feature phones had replaceable batteries which eventually needed replacement. It is much easier/cheaper to buy a replacement battery on Ebay/Amazon than to try to get it replaced.

I think the real issue here is "Does your battery life suck?"

If your phone lasted all day no problem, then no one would care.

Put a great OS, chipset and battery in a phone, fix the ad-related battery drain in apps and you wouldn't ever need to swap your battery.

Honestly, a removable battery aint a big deal for me
I only pull it in my Atrix to swap the SIM card (4 ,5 times per year)
Even when (Rarely) my Atrix freeze I just hold the power button for like 10 seconds & it reboots

In the other hand, an external SD card is a must for me !
I'd a 16GB ipod touch for almost 5 years

im done with limited storage & I AIN'T GOING BACK

Edit : lack of expandable storage (SD card) is the DEAL BREAKER for me, it actually stopped me from getting a Windows Phone 7 device (& I gotta say I love WP)

I wouldn't even consider the RAZR because of the fixed battery. I could live without a uSD card slot but not the replaceable battery. That's why I went with the Galaxy Nexus - well, that and the ICS.

Removable batteries are vital to me. Living in Miami, I need that ability to swap out batteries from my Android phone especially during natural disasters like hurricanes.

My Wife's Droid Razr Maxx was off charger for 3d 6h 56 minutes and at 17 percent. (87 hrs). She does not need a removable battery.

Both my phone and tablet have removable batteries and when they freeze, I'm able to force shutdown them the same way I do with computers: hold down the POWER button for eight seconds and they go off. Any unsaved data is lost and you might get files with gibberish inside the LOAST+FOUND folder but none of this is different that a battery pull.

My point is, is there a reason you can't do this with sealed-battery devices? Is there a reason you have to mess around with power and volume rocker instead of just holding down the power button for eight seconds?

I don't swap batteries very often, but I do keep a spare for long trips.
I wouldn't mind if swapping batteries requires a screwdriver, i.e. it's "user serviceable", but I wouldn't buy a phone or laptop or tablet which was a sealed device and swapping battery would void the warranty.

Many of the complaints people have with a none-removable battery have work arounds. Battery doesn't last a full day? get a external power pack. Phone freezes? hardware button combination or a pinhole reset button. But there are several reasons non-removable batteries are bad that there are no work arounds for:
1) When a none-removable battery dies, the phone is dead. I had to replace my battery on my last phone about a year in. This is all fine and good if you buy a new phone every year, or if the carriers would replace your phone with a new one for $50 or less, but if you use a phone for the full duration of your contract, or buy your phones used this becomes impossible.
2) If you are really clumsy, or just unlucky, you can get water all over your phone. Now, a little water on a circuit board is completely harmless unless there is electricity running through it, so you want to pull the battery ASAP.

If the phone had a 3000 mah battery or more like the razr maxx, I wouldn't have any problem with a non-removable battery, but if it's under 2000 MaH it would likely be a deal breaker, I'm on Verizon's LTE network and I love it but it's murder on my battery. 2000 - 3000 Mah would be a toss up depending on how much I liked the phone in comparison to other lte phones with removable batteries. I don't swap batteries very often but I have been in situations when it was useful, like on a long trip. I'm up for a new phone in November, we'll see what happens then, it seems a lot of phones are going non-removable battery

However all things being equal and given the option of the same phone with or without a removable battery, I'd always choose the removable battery.
Phones without removable batteries do seem like an awful waste though, a good smartphone can be passed down between members in a family to members who don't need the latest and greatest smartphone or sold on ebay for users who simply can't afford the latest and greatest, 1 or 2 year old top of the line models are often a much better deal than the current low to mid range models. Non-removable batteries just send more phones to the garbage as li-ion batteries degrade.

I agree, if I had the choice I'd opt for a Razr Maxx with a removable battery. But that wasn't a choice and the battery lasts a really long time. If it ever dies on me and won't hold a charge, well, that's why I have insurance.

I dropped insurance after my experience. They were charging me $9 a month, which comes to $108 a year. On a 2 year contract, those fees come to $216. But even when I trashed my device after 18 months, I still had to pay another $50 deductible. That just didn't make good sense to me.

It's less expensive to "self insure" and buy a used/refurbished phone, which is what the insurance company provides if something happens.

I've never experienced a "non-removable battery" phone. I would love to test it out. ONE X or XL day maybe I can do so.

Instead of buying an extra battery for my wife's and my Galaxy S2 we decided to buy a couple of solar chargers. There a lot more versatile than just an extra battery for your phone if you have other devices that you would like to keep charged. You can charge almost anything with these chargers.

Does the Sprint service plan cover non-removable batteries? If so, I'm not going to worry too much about it.

EDIT: From the Equipment Service and Repair Program brochure on Sprint's website - :

"If failure occurs in the standard battery, standard charger, and/or Subscriber Identification Module (SIM) Card in conjunction with the Operational Failure of the Designated Wireless Device, we will also
repair, or, at our sole option, replace one standard battery, one standard charger, or one Subscriber Identification Module (SIM) Card, as applicable."

I'm going to call them in the morning to see if it applies to non-removable battery failure.

My wife and I both got the Evo 4G on the day they were released in 2010. I use my Evo as a media player, listening to podcasts, both streaming and downloaded plus music but I do not make many calls. She does not do much media but comes from a large family and loves to talk to them. Also, like many of you we do not have a home phone. (Actually we have Magic Jack but that really does not count as a usable phone lol.)

We soon found that battery life in the EVO 4G was a problem. We could not get through a day without a charge. We tried replacing the battery with a new one but that did not help. We bought chargers and kept them everywhere. While that worked, it was not very convenient as it was not unusual for one or the other phone to die sometime on a day when a charger was not available. This especially upset my wife since she was used to her old Nokia flip phone that would run for days without a charge.

Last summer we found extended batteries and bought them. Yes, the phone is now heavier and thicker. BUT, it now lasts all day and the size is not really a problem.

Even if a phone has excellent battery life with a non-removable battery, I would not buy it because of the fact batteries will not last the length of the contract and I do not want to pay anyone to replace the battery after it will no longer accept a charge.

Ever since the days of Walkman I have used removable rechargeable batteries in my many many gadgets and I respect manufacturers who respectfully make gadgets with removable batteries so that I (consumer) then replace a depleted battery with another battery and continue using my gadget after only a small break.Now if a manufacturer produces a gadget with a sealed back thus making it impossible for me to change a battery and charge it from an outside charger ...well then I am left with some very bad thoughts about the manufacturer.i cannot understand why anyone can change the thinking about rechargeable batteries....which are always in a process of evolution and improvement.....and why they cannot be charged externally and breathe as they charge....This is the safest way to charge a battery....and there is no noticeable delay in enjoyment in using the gadget with a fresh battery freshly installed.
If manufacturers use any excuse to seal the backs of their gadgets and have batteries soldered to internal connects then I can only assume that they are being nothing less than selfish in depriving me the use of a removable rechargeable battery.

I will not own a device of any kind that does not have a removable battery. Batteries go bad. It is really just that simple.