Hydro-caps [RE-wrenches]

[Bill Brooks]

Kurt:

For a maintenance free battery, there are two VRLA (valve-regulated lead
acid) options: (1) Gel and (2) AGM-Absorbed Glass Mat Batteries. Most
manufacturers of these types of batteries offer both products which means
that one is not clearly superior to the other under all circumstances.

My simplistic rule is that Gel batteries are good for off-grid applications
and AGM batteries are good for floated on-grid applications.

We see this in industry--telecom applications on mountain tops use gel
batteries, unattended computer UPSs use AGM batteries and virtually all
maintained applications use flooded batteries.

Bill Brooks


> -----Original Message-----
> From: Windy Dankoff, Dankoff Solar [mailto:windy at dankoffsolar.com]
> Sent: Tuesday, February 13, 2001 12:56 PM
> To: RE-wrenches at topica.com
> Subject: Re: Hydro-caps [RE-wrenches]
>
>
> >At 07:45 AM 2/13/01 -0800, you wrote:
> >>He feels his wife would never even
> >>open the battery box.
> >
> >Kurt:
> >
> >Why not consider Gel Cells?  They are absolutely maintenance free and are
> >reportedly capable of more cycles than a flooded lead acid
> battery.  I have
> >several clients with them and they work great.  I have two of
> them powering
> >a Stat-Power 1800 in my service vehicle.  I am installing MK
> powered 8GGC2
> >batteries.
> >
> >William Miller
>
>
> Kurt,
>
> Look back in the archive for discussions of Hydro Caps a few months
> ago. They work exactly as specified, which is not good enough for RE
> systems with large backup chargers, or especially equalizing. Not
> enough range of acceptance for the widely varying gassing rate,
> generally speaking.
>
> I agree therefore with William. Concorde batteries are certainly
> among the best. Be careful what you choose!
>
> Windy
>
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For info contact list moderator by email:
 michael.welch at homepower.com

____________________________________________________________
T O P I C A  -- Learn More. Surf Less. 
Newsletters, Tips and Discussions on Topics You Choose.
http://www.topica.com/partner/tag01