Re: [NTLK] Charging, better slow or fast?

From: Christian Burk (cmburk75_at_mac.com)
Date: Fri Jul 25 2003 - 08:09:21 PDT


But if the charger actually says that it will take 14 hours to charge
these, would that be overcharging?
Christian

On Friday, July 25, 2003, at 03:53 AM, newtontalk_at_newtontalk.net wrote:

>
>> I have just picked up a NiMH charger and 4 1800 mAh AAs for an MP130 I
>> picked up on e-Bay. I noticed that the charger is a slow one, it takes
>> over 14 hours to charge the set. Now, that may or may not be a
>> problem,
>> but I'm wondering whether I might be better off with a fast charger?
>> What is better for the battery? Does anyone know?
>
> The short answer is neither. Overcharging is the enemy of NiMHs.
> Conversely to what you first think, fast chargers are usually better at
> not overcharging, because they have some circuitry to stop when the
> battery is charged. A 14 hour charge of a battery that wasn't
> completely flat might result in 4 or 5 hours of overcharging.
>
> Kim Howe

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