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Re: [Shop-talk] EE question

To: <shop-talk@autox.team.net>
Subject: Re: [Shop-talk] EE question
From: "Randall" <tr3driver@ca.rr.com>
Date: Sat, 3 Nov 2007 14:19:32 -0800
> I know there are 28V Li-ion tool chargers but I don't think 
> they would work for lead acid.

Are you sure they are lead-acid ?  The ones my helicopter pilot buddy used
to give me were nickel-cadmium.

FWIW, some APC UPS units at least used to have external battery connections.
Even if you had to modify the charger portion somewhat for a different
battery voltage/chemistry, I would think a used UPS would be a much cheaper
starting point than trying to source the components (and design) to build
your own from scratch.

Randall
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