Yes that is one thing you need to consider, can the motor stand the actual
amps deliverable from the new battery against the old nicads?
Brian

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On 31/10/2020 13:26, Dave Plowman (News) wrote:
I have an ancient 18v one of these - uses Ni-Cads. All the batteries for
that - including the one I had refurbished at vast cost - are pretty well
dead. And the refurbished one never delivered the same power as the
originals. It is a useful drill in that it has an add on right angle
adaptor, so handy for the odd awkward space.

There's plenty room inside a battery case for 18v worth of 18650 Li-Ion,
and I do realise I'd need to mod the charger too.

Dedicated right angle cordless drills seem to be an arm and a leg -
unless
someone knows different?

Anyone done this sort of mod?

One option would be to put in NiMH which are still available. Some
chargers (e.g. my Makita one) are compatible. That said, I've got a NiCad
Ryobi drill plus angle drill plus all the bits in the bag of "metal" scrap
ready to go to the tip because ICBA to re-cell it.

Even the Aldi/Lidl LiIon drills have more oomph than the old NiCad ones.