Battery pack substitution

J. Forster jfor at QUIK.COM
Tue Nov 8 15:59:39 EST 2005

As I remember, you can also run this unit from an external DC supply. Try that.
I'd not sub gel cells for NiCds.


DrRick wrote:

> Boom, I think. You may want to shunt regulate the output of gel pacs
> and also look into the regulation of the charge circuit.
> Peace,
> DrRick
> On Nov 8, 2005, at 12:50 PM, Linden, Jerome wrote:
> I just acquired a HP105B frequency standard with a bad battery pack,
> naturally.  It uses 20 D size NiCad's for 24 volts.  If I were to
> replace the NiCad's with a couple lead-acid gel packs, would I be
> causing a problem with the internal charging circuit?   (surge, load
> current, etc, etc)   Tnx
> JR Linden  K7PUR
> Cave Creek, AZ

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