NTLK Deep discharge and stuff

From: Gruendel, Frank 3837 PPE-WT (Frank.Gruendel@de.heidelberg.com)
Date: Mon Aug 28 2000 - 12:58:23 CDT


>they mention on the battery site that NiCads need some "exercises", from
>tme to time, which is a complete discharge (down to 1V by cell).

Don't mistake normal discharge for deep discharge. Normal discharge is
reached
exactly when your MP turns off due to too little voltage. This happens at
about
1.0 - 1.1 volts or so.

Controlled deep discharge, i. e. below about 1.0 volts, can benefit the
batts
if it is properly done. Properly meaning that the discharge time, the
discharge current and the discharge curve is monitored
precisely. As no affordable charger I know can do that, your best bet would
be to forget this kind of exercise. You have about a 100 percent chance to
harm the batts instead of strengthen them.

>So, anyone has any idea about how you can easily discharge an NiMH pack?

As I said above: Use your MP until it shuts off.

>Any danger of over-discharging an NiMH?

Yes! But not if you use it in the MP only.

Frank
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