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

[Don Loweburg, Offline]

In a message dated 11/19/2003 10:21:32 AM Pacific Standard Time, 
solarsisterj at yahoo.com writes:

> and 10-12 years in stand alone mode...(which seems strange to hear of 
> sealed battery getting that long of a life.

Seems high to me also. This is a tricky area with so many variables that 
could change from system to system. Ie float voltage, amount of cycling, 
mailntenence etc.

>From a pragmatic point of view , the verdict is not in for me. I do have 
numerous Y2K systems, (SWs grid connected and mostlyl L16 batteries) some almost 5 
years in service with no battery problems. Maint for these floated systems 
consists of twice yearly watering -(some actually only need water once a year).

There is a general consensus that gels may be better for float service. I 
would rely on real world experiences rather than battery reps spiels.

Don Loweburg

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