[RE-wrenches] AGM battery recommendations

Sun Jan 12 09:51:31 PST 2025

I had the exact same thing happen(even down to the crowbar) with the only
set of full river 400 6's I've ever installed. I personally lean away from
agm though we've had pretty good luck with the Outback and Northstar PLR
platform over the year..

On Sun, Jan 12, 2025, 9:39 AM Ray Walters via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> The only thermal runaway event I've ever seen, was with AGM in an over
> insulated battery box.  Got so hot that the cases fused to each other, and
> we had to pry the batteries apart with a crow bar.  She wants ZERO risk of
> fire?  She needs to live in a concrete bunker with no electricity at all.
> Every electrical connection, every outlet, every appliance has a risk of
> fire.  Period.
>
> Ray Walters
> Remote Solar
> On 1/12/2025 9:39 AM, Tyrone Houck via RE-wrenches wrote:
>
> I hate to be the one to say it but LFP has arguably less fire risk than
> agm. A short circuit in an agm could be disastrous and AGM is not
> necessarily any safer or less prone to thermal runaway events than modern
> LFP. I'd recommend a cobalt free LFP like homegrid, simpliphi, or midnite
> if it were me..
>
>
>
>
> On Sat, Jan 11, 2025, 3:38 PM jay via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> I was going to try and steer her towards lithium but she wants zero,
>> absolutely zero chance of fire, so no lithium.
>>
>> great batteries though
>>
>> jay
>>
>>
>>
>> On Jan 11, 2025, at 4:35 PM, MD Electric & Solar via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>> 30KWH of LFP from discover energy, fits in one enclosure, around $14000.00
>> Enclosure is indoor/outdoor rated.
>>
>> https://discoverenergysys.com/products/lithium-batteries/aes-rackmount
>> https://discoverenergysys.com/products/accessories/slimline-enclosure
>>
>> On Sat, Jan 11, 2025 at 3:31 PM jay via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>>> HI Willam
>>>
>>> Thanks for the input.
>>> I didn’t know that trojan was sold, and from what you say, yeah scratch
>>> them off.
>>>
>>> It’s currently at 30kwh.  And thats probably a good size.
>>> As always, cost and time is a factor.
>>>
>>> I’ll check the others out.
>>>
>>> jay
>>>
>>>
>>>
>>>
>>>
>>> > On Jan 11, 2025, at 4:17 PM, William Miller <william at millersolar.com>
>>> wrote:
>>> >
>>> > Jay:
>>> >
>>> > What AH or Kwh level are you looking for?
>>> >
>>> > Trojan was acquired by another company a few years ago and quality had
>>> gone
>>> > downhill.
>>> >
>>> > Rolls is very sensitive to high temperatures.  They will deny a
>>> warranty
>>> > claim if all of your parameters are not exactly right.
>>> >
>>> > For larger AH systems:
>>> >
>>> > I like the Full River DC-400-2.  You might be able to do a one string
>>> > installation.
>>> >
>>> > Unigy II is a great system.  Very robust.  Hard to deliver but I can
>>> offer
>>> > tips.  Lots of AH size options.
>>> >
>>> > William
>>> >
>>> > Miller Solar
>>> > 17395 Oak Road, Atascadero, CA 93422
>>> > 805-438-5600
>>> > www.millersolar.com
>>> > CA Lic. 773985
>>> >
>>> >
>>> >
>>> > -----Original Message-----
>>> > From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org]
>>> On
>>> > Behalf Of jay via RE-wrenches
>>> > Sent: Saturday, January 11, 2025 2:48 PM
>>> > To: RE-wrenches
>>> > Cc: jay
>>> > Subject: [RE-wrenches] AGM battery recommendations
>>> >
>>> > Hi All
>>> >
>>> > I have a customer what is set on AGM.
>>> >
>>> > It been so long since I’ve bought any, wondering if there are any
>>> > recommendations?
>>> >
>>> > The ones I’m looking at:
>>> >
>>> > Rolls  S6-460AGM-RE
>>> >
>>> > Full river DC-400-6
>>> >
>>> > Trojan SAES 06 375 6V
>>> >
>>> > sun Xtender  brand.
>>> >
>>> > What’s interesting is the trojan has about 3000 cycles vs the others at
>>> > around 1250 cycles to 50%.
>>> > Im wondering if that is a marketing idea or if its real.
>>> >
>>> > thanks in advance
>>> >
>>> > jay
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>>
>> --
>> Michael D Nelson
>> MD Electric & Solar Inc.
>> Office: 707-412-3181
>> Cell: 707-684-0064
>> www.mdelectricsolar.com
>> www.facebook.com/mdelectricandsolar
>>
>>
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