Forum Discussion
pnichols
Sep 30, 2020Explorer II
pianotuna wrote:craz z wrote:
The SIO2's dont look much better stat wise then a agm and way more expensive.
Then find me a battery that can be charged at -40 and can also survive being discharged totally 620 times before it degrades to 80% of OEM capacity?
Cycle life cost is cheaper than AGM.
Don - excellent points!!
Studying both SiO2 battery and LiFePo4 battery performance specs, I'm not quite sure I see LiFePo4 benefits head and shoulders above SiO2.
By the way, a lot of LiFePo4 RV battery fans seem to not know that AGM batteries charge much faster (due to their low internal resistance) than good old liquid acid batteries do, too ... just like they claim for LiFePo4 batteries in an RV. For instance, Lifeline AGM batteries are advertised to accept huge charging currents - well beyond liquid acid batteries.
The purchase cost versus lifetime performance difference between the two battery technologies seems to me to be vanishingly small ... or maybe weighted in favor of SiO2 (discounting battery weight - which is not a performance issue).
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