[RE-wrenches] AGM battery recommendations

[Tyrone Houck]

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
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