Safe using a different charger?

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I'm wanting to swap the .7 amp stock Samsung charger for either a Motorola 950 mAmp or a 1.0 amp charger. Is there any danger to this? I wouldn't assume so, just a faster charge.
Then again I'm no electrician so I don't know.

Originally Posted by AntwanL

I'm wanting to swap the .7 amp stock Samsung charger for either a Motorola 950 mAmp or a 1.0 amp charger. Is there any danger to this? I wouldn't assume so, just a faster charge.
Then again I'm no electrician so I don't know.

I use the 1amp Monster charger and it makes no difference in charging speed. From what others have posted our phones charging chip limits the input no matter what charger you use.

Oh really??? That sure is discouraging... Well thanks for the heads up

I can verify that from personal experience. My charger I leave in the living room is a stock motorola brick originally with the atrix. And I've never noticed any difference between that one and the samsung branded one that came with the phone.

Though the motorola cord is stupid short. Any motorola users out there know what I'm talking about.

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Originally Posted by AntwanL

Oh really??? That sure is discouraging... Well thanks for the heads up

If it didn't you battery would explode. You can use anything up to 2amp (I've used my playbook charger) and you should be fine, but it won't change the charge speed.

Lithium batteries have a very specific range of operation, and do not tolerate excursions outside that range.

Charging (or discharging) at too high a rate will cause the battery to fail because it increases battery temperature, and because it encourages the growth of dendritic Lithium metal which will short circuit the cathode and anode (increasing temperature). Overcharging and discharging can also cause failures, but most Li-Ion batteries have an internal chip to prevent these situations.

Initially a failing battery will "puff" due to gas generation from the breakdown of electrolyte, but the cells are vented to prevent them from exploding. If the failure is allowed to progress (for instance if the battery is left on charge at too high a rate), the battery will ultimately achieve a condition of "a highly energetic exothermic chemical reaction". Temperatures well above 300ºC are possible - and you can't put it out since it's not combustion, it's a chemical reaction.

It's hot, and it generates a lot of smoke, and it'll set things nearby on fire, but it doesn't actually "explode".

Dang I feel dumb when I read posts by people who are obviously way smarter than me. I mean, I know it's not a high bar, but still.

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I agree with t most everything. watch a video off a li-ion battery exploding (out lighting on fire) they are very violent. The only gripe I have about that last post is burning and fire is still a chemical reaction... I would compare it to thermite which is a rapid oxidation of two metals (which I'm not sure if that classifies as burning or not? HMM) =P just poking fun

PS. Thermite can "burn" without the presence off oxygen and so it doesn't burn... Just reacts. I'm assuming that li-ion does the same...

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Basically, anything with a rating of 0.7 amps or above which shorts D+ and D- together (indicating a dumb charger) will behave the same.

Our internal charging chip limits to 650 mA on AC and 400 on USB. So the only thing you have to watch out for with cheap chargers are:
1) Voltage WAY off from 5 volts (USB standard) at 650 mA load
2) Does not properly signal "dumb charger" causing the phone to charge at 400 mA

So I got a 1.0 mAh USB charger from a Palm device and so far it seems to charge significantly faster.
Not trying to argue the science behind it but that's what i'm seeing.

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