Battery Life in Grid-Tie Systems [RE-wrenches]

[sunwise]

I have also told clients with a grid-tied SW to cycle power to AC1
periodically.  Doing so initiates a charge cycle, and if the bulk
voltage and absorption period is set right, you're going to get some
mixing of the electrolyte.

Kurt Nelson
SOLutions

-----Original Message-----
From: Todd Cory, Mt. Shasta Energy Services
[mailto:toddcory at finestplanet.com] 
Sent: Thursday, November 20, 2003 8:34 AM
To: RE-wrenches at topica.com
Subject: Re: Battery Life in Grid-Tie Systems [RE-wrenches]

Richard Perez in a recent post about this said there is no reason to
cycle a
floated, wet cell battery in a grid tie system. Equalizing is still
something worthwhile to do occasionally. Run the voltage up until all
the
hydrocaps get the same (warm) temperature and you are done.

Todd


"Carl Emerson, Free Power Ltd." wrote:

> Hi there,
>
> Following on from the original question...
>
> I just checked a bank of Trojan L16's that have been in service on a
> grid-tie installation for two years.
>
> They have hydrocaps and have never needed watering.
>
> I have instructed the client to disconnect the grid for a day every
few
> months to give the bank something to do and thereby extend the life of
> the bank.
>
> The question I have is will the bank which is 99% in float mode
require
> equalization as well as regular cycling ??
>
> Your thoughts...
>
> Carl Emerson
> Free Power Ltd.
> Auckland. NZ

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