[RE-wrenches] AGM battery recommendations

[Nick Lucchese]

Hello Ron, I've got 9 systems that fall under this category. Beginning with
the Outback Energycell 200 RE installed back in 2015 to the newest Outback
rebranded Northstar Blue batteries. No C/5 charge limitation solved some
array expansion issues too. For a while the price per watt hour metric was
only about 20% above Trojan RE series. All still performing as expected
with the exception of one whose owner disconnected the array to move into a
different location for months and never added any generator charge until it
was too late. Also the homeowner of the 2015 system aged out and left the
home vacant and nobody has let me in to assess so it's definitely possible
they are no longer operational. I've been concerned that the extended
absorption times required/recommended on the Northstar Blues aren't
anywhere near manufacturers recommendations but so far so good. Now with
the Midnite Powerflo solutions being $.25 a watt hour and under on the
retail level I see no reason to use anything else on my 48v systems.

Nick


On Mon, Jan 13, 2025 at 4:06 PM Ron Young via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> New kid on the block is Lead Carbon AGM type batteries that use activated
> carbon and graphene. I have supplied a few sets of these but because they
> are so new up here there is no real solid reliability gauge based on user
> experience. I’d be interested to know if any others have comments regarding
> these. They claim long cycle life, significantly reduced battery sulfation
> and rapid charge with a price comparable to other AGM's.
>
> Ron
>
> > On Jan 11, 2025, at 2:48 PM, Jay via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
> >
> > Hi All
> >
> > I have a customer what is set on AGM.
> >
> > It been so long since I’ve bough 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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