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Samsung Galaxy S7 lets you turn fast charging off, if you want

The ability to charge your phone faster probably is one of the bigger breakthroughs of the past couple years, at least as far as mobile tech is concerned. And as such manufacturers have been tripping over themselves to claim the title of "fastest-charging phone." And Samsung has increased the battery capacity in the Galaxy S7 to 3,000 mAh for the prime model, and a whopping 3,600 mAh in the curved-screen edge model. That's a lot to charge. But Samsung has included something interesting with this year's models.

You'll now have the option to turn fast charging off in the settings. Let's take a quick look.

Tucked into the battery settings you'll find a couple settings. The first is for "Fast cable charging." Here's how it's described:

Charge your battery more quickly. Your device may become hot while using Fast cable charging. If Fast cable charging is turned off, standard charging will be used instead.

Why would you ever want to turn this off? If you're really worried about the heat, and long-term battery life, we suppose. We went into battery tech in detail in our Futurology series. And heat remains the enemy. So if you're really concerned about your phone while it's charging via the microUSB cable, you can turn it off here. Qualcomm is open about the fact that their Quick Charge tech (which is similar to what Samsung has here) will decrease the overall lifespan of a battery, but says that most users will have upgraded to a new phone long before any deleterious effects are felt.

There's also a setting for Fast wireless charging. It reads thusly:

Charge your battery faster. You may hear a fan noise while using Fast charging. If Fast charing is off, standard wireless charing will be used instead.

So that's the same sort of thing. But the bigger difference is that Samsung's wireless charger has an active fan inside to help keep things cool. And we could imagine someone having this next to their bed, but not wanting the fan kicking on at night. So, there's another option here.

Or you don't have to use them at all and can keep on charging just as fast as you possibly can. Your call.

32 Comments
  • Hmm Posted from my Nexus 6/Nexus 7 2013/Surface Pro 3
  • Why the heck would someone want to turn fast charging off?!?!?!? Posted via the Android Central App
  • Consequences of heat Posted via the Android Central App
  • Faster the charge, faster the discharge. Slower the charge, slower the discharge.
  • Uh, no.
  • I could see myself keeping it off for charging over night, and only turning it on if i needed a quick charge in the middle of the day. I've always used NON quick charge capable chargers for overnight charging for this reason.
  • Did you read the article?
  • To save your battery from getting so hot. A hot battery will minimize the amount of charging "cycles" before the battery stop functioning correctly, as it did when it was first purchased.
  • I rarely rapid charge my m8. I would all the time if the battery wasn't embedded. Posted via the Android Central App
  • As opposed to the S6 which automatically stops fast charging or charging altogether for that matter LOL. The alternative to this on the current phones is to turn the screen on while charging. This prevents Quick Charge from kicking in.
  • What are you smoking?
  • the s6 was fussy with fast charge, i would often have to plug it in 2-3 before fast charge would enable.
  • But... what's the point?
  • Exactly?!?!? Posted via the Android Central App
  • "If you're really worried about the heat, and long-term battery life..." Then stick with a device that has a user-replaceable battery where you don't have to worry about any of this stuff!
  • Yawn Posted via the Android Central App
  • Lol, while you're yawning I'm over here using my device (Note 4) with reckless abandon knowing there's a fully charged spare ready to get me back to an immediate full charge, as well as no worries about managing the battery charge level hoping to prolong its longevity regardless of how I use and abuse the battery. And that's not mentioning all the reports of failing batteries around the one year mark (as reported in numerous threads in the Note 4 forum). :)
  • You'll also be stuck with one manufacturer from now on if you want a flagship. I agree with what you're saying, but I'm sorry... that ship has sailed.
  • Yup, I'm fully aware. Unless Samsung makes a change with the Note 6 (ex. bringing back user-replaceable battery), this Note 4 will be my last Samsung device!
  • Most people here don't really seem to get it, but fast charging is very bad for a phone's battery and should be only used if you need to. Even if it is replacable, it's better when you don't need to replace it. This is a very good move by Samsung and should be adopted by other companies who offer fast cbarging. It really isn't that useful if you charge your phone overnight and many people need to use an ancient charger to maintain battery performance. Although I have never owned a Galaxy smartphone and never liked them, the S7 is great beacuse reason is more important than boasting with numbers this time. A welcome change
  • I use my normal charger for overnight charging with the S6. And because of the crap battery i use the quick charge during the day.
  • I never run into this issue I keep my phone for about 4 to 6 months. Posted via the Android Central App
  • This has been available hasn't it? I could turn fast charging on and off on my note edge... Posted via the Android Central App
  • Same as my Note 4. Posted via the Android Central App
  • The Note 4 has always had this option. I leave it off unless I need it. Posted via the Android Central App
  • Pretty nifty if you want to preserve the lifespan of your battery but only have quick charge wallwarts lying around. A small loan of a broken G4
  • They should've thought about this a long time ago. As much as I love the convenience of fast charging, I hate the fact that my battery capacity is reduced at a higher rate. Oh technology, take my money! Posted via the Android Central App
  • It the fast charging is anything Ike my Note 5, it'll turn off by itself. Fast charge doesn't work the majority of the time anyway Posted via the Android Central App
  • I do this with my Note 5 already, I have a standard third party 2 amp charger that I use to charge it over night and I have the OEM Fast charger that I only use when I need to charge fast during the day, which I rarely have to use. I'm keeping my phones longer these days and I'd rather slow charge overnight and keep things cool.
  • Samsung offer choice and the Comments bash them for it... Yawn Posted via the Android Central App
  • Maybe this reduces the chance of sudden battery explosions?
  • I am not able to find the option to turn off fast charging on the revamped settings page after the Nougat update. Where are they located? After turning them off should we charge via the charger that came with the phone(the so called fast charger) or should we use a charger from an old phone say SIII etc.?