Thanks. I took a look but it looks like they do not handle lead acid
and also that they only go up to 14V.

Sean


On 7/26/07, Trevor Page <t@introspectiv.eclipse.co.uk> wrote:
> Hi,
>
> Also, try PAG.
>
> http://www.paguk.com/
>
> The company I used to work for uses these. They are battery chargers for the
> broadcast industry but we actually bought them in and sold them to customers
> for an EMC application. The chargers have the ability to determine battery
> capacity.
>
> Trev
>
> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
> PAUL James
> Sent: 26 July 2007 21:31
> To: Microcontroller discussion list - Public.
> Subject: RE: [EE] Battery Cycler
>
>
> Sean,
>
> Check out this link.  It may or may not be what you need, but even if it
> isn't, it may lead you to what you need.
> http://205.168.79.26/vehiclesandfuels/energystorage/pdfs/pesaran2.pdf
> Have fun.
>
>
>
> Regards,
>
>
> Jim
>
> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
> Sean Breheny
> Sent: Thursday, July 26, 2007 3:16 PM
> To: piclist@mit.edu
> Subject: [EE] Battery Cycler
>
> Hi all,
>
> At my company we work routinely with 48V 28Ah and 50Ah deep-cycle sealed
> lead-acid battery packs. We want a method for accurately determining the
> actual capacity of such packs. Ideally, I want to find a device which will
> automatically "cycle" such packs (by this I mean fully charge and then fully
> discharge, integrating up the amount of useful capacity which was drained
> during discharge and reporting it).
>
> I've found battery cyclers like this for RC hobby applications, but they
> don't seem to go much over 24V and they are typically limited to about 50W
> dissipation during discharge. I'd want something which could go to around
> 70V on charge (necessary to really top off and equalize a 48V
> pack) and could handle up to 10A on discharge (500W).
>
> I'm willing to spend quite a bit of money on this but I can't seem to even
> find such a thing for sale. Does anyone know of one?
>
> Thanks,
>
> Sean
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