[RE-wrenches] AGM battery recommendations
Ray Walters
ray at solarray.com
Sun Jan 12 09:38:17 PST 2025
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 <http://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 <http://www.mdelectricsolar.com/>
>> www.facebook.com/mdelectricandsolar
>> <http://www.facebook.com/mdelectricandsolar>
>>
>>
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