NiCad and NiMh cell voltage

  Diemmess 18:27 PM 15 May 11

I have had a cordless drill (AEG 9.6v) for about 15 years Over this time have replaced the nicads in the battery packs. Nicads these days are Na-Poo and I bought NiMh cells instead, but still found life in the old cells.

How close is the match of the standard voltage of single cells between NiCad and NiMh?

Are they both rated as 1.2volts? The fast charger supplied, seems sophisticated enough to respond to the voltage and signal when fully charged. The battery packs have a heat sensor and will presumably cut off if the pack heats up too much.

I realise capacity and Charge/Discharge rates may differ.

  ton 00:03 AM 16 May 11

Both are 1.2 volts

  Diemmess 08:44 AM 16 May 11

Thank you

  BT 08:52 AM 16 May 11

Not sure but I think the charging profile is different for NiMh batteries.

  Diemmess 10:19 AM 16 May 11

BT, you are probably correct, but the drill and any replacement battery packs belong to the past.

It is this or the bin and when the NiMh cells are fitted, I will watch it like a hawk over the initial charge and the next few after that.


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