[RE-wrenches] Interstate L-16 vs Trojan L-16REB

[Jason Szumlanski]

I was talking more about my experience with off-grid. I’ve got lots of
batteries in off-grid systems that have loads only occasionally. They get a
bulk charge every day.



For an on-grid system, I wouldn’t worry too much about float service as
long as the manufacturer’s recommendation for float voltage is followed. I
know at least on manufacturer recommended to me that the float voltage be
set lower for batteries that are rarely discharged. Again – talk to the
manufacturer…



Jason Szumlanski

Fafco Solar







*From:* re-wrenches-bounces at lists.re-wrenches.org [mailto:
re-wrenches-bounces at lists.re-wrenches.org] *On Behalf Of *
toddcory at finestplanet.com
*Sent:* Wednesday, February 15, 2012 3:08 PM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Interstate L-16 vs Trojan L-16REB



the only time an OB GFX bulk charges is after a grid outage.



todd







On Wednesday, February 15, 2012 10:58am, "Jason Szumlanski" <
jason at fafcosolar.com> said:

I’ve had some success with RE batteries in float service by reducing the
absorb time and float voltage. Talk to the manufacturer for their
recommendation.

I think float service is fine for RE batteries, but bulk charging every day
when the sun comes up just cooks them unnecessarily. Also anecdotal…

Jason Szumlanski

Fafco Solar

*From:* *re-wrenches-bounces at lists.re-wrenches.org*<re-wrenches-bounces at lists.re-wrenches.org>[mailto:
*re-wrenches-bounces at lists.re-wrenches.org*<re-wrenches-bounces at lists.re-wrenches.org>]
*On Behalf Of *Larry Crutcher, Starlight Solar Power Systems
*Sent:* Wednesday, February 15, 2012 1:52 PM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Interstate L-16 vs Trojan L-16REB



I would not recommend using an RE battery for standby/back up use.



There is a similar problem that I have seen. People use 6 volt golf cart
batteries in their motorthome and then stay plugged into shore power for
long periods of time. I see premature failures from this type of use. A
golf cart battery is designed to be cycled, not left in float service.
Without exercising the battery by occasionally discharging it and then
charging and equalizing, it is likely to fail early. My opinion is
anecdotal but I'm convinced it is true.



Larry Crutcher

Starlight Solar Power Systems

(928) 342-9103



On Feb 15, 2012, at 11:38 AM,
*toddcory at finestplanet.com*<toddcory at finestplanet.com>wrote:

> I've been happy with Trojan batteries. They do say that they need up to
100
> cycles to reach full capacity.

so what does this mean for grid ties/battery back-up?

todd




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