LifePo4 Charge Performance
Thinking seriously about replacing our two GC2's with a pair of 100ah LifePo4's. Hearing a lot of chatter about how lithiums accept a charge much quicker than lead cells. Very familiar with how ou...
Forum Discussion
As per my previous thread stated observation (updated):
“I might definitely lean more in the direction of SiO2 where (in the approx following order):
1) If weather conditions might include ‘extended excursions’ at or below 32F while having no provisions for keeping battery above 32F (e.g. heated compartment or batt. blanket - note, Li safely discharges to about -4’ish F). For some users this criteria could be paramount..
2) Initial cost...However, this issue is often mitigated by the long cycle life of LiFePo4, while LiFePo4 entry-fees seem to be slowly dropping...
3) Ultra high amperage discharge rating of SiO2’s well exceeds all other competing Battery types - might highly depend on one’s amperage requirements (??).
4) Where Recharge ‘C rate’ is not a critical parameter - this more in terms of off-grid solar peak-period harvesting window...
5) Where ‘required-usable’ DOD (depth of discharge) and voltage-sag (vs LiFePo4 alternative) can be offset by having more battery capacity - assumes no space or weight restrictions - Not always of primary consideration or limitation.
6) Where unattended self-discharge rate can be mitigated by an active charging device - something to well consider when off grid...
7) Where battery venting is not a concern.
8) Were a SOC meter capable of accurately measuring SiO2 SOC is available (TBD)...”
I would again submit that much of this depends on region and is application dependent -JMO
3 tons
“I might definitely lean more in the direction of SiO2 where (in the approx following order):
1) If weather conditions might include ‘extended excursions’ at or below 32F while having no provisions for keeping battery above 32F (e.g. heated compartment or batt. blanket - note, Li safely discharges to about -4’ish F). For some users this criteria could be paramount..
2) Initial cost...However, this issue is often mitigated by the long cycle life of LiFePo4, while LiFePo4 entry-fees seem to be slowly dropping...
3) Ultra high amperage discharge rating of SiO2’s well exceeds all other competing Battery types - might highly depend on one’s amperage requirements (??).
4) Where Recharge ‘C rate’ is not a critical parameter - this more in terms of off-grid solar peak-period harvesting window...
5) Where ‘required-usable’ DOD (depth of discharge) and voltage-sag (vs LiFePo4 alternative) can be offset by having more battery capacity - assumes no space or weight restrictions - Not always of primary consideration or limitation.
6) Where unattended self-discharge rate can be mitigated by an active charging device - something to well consider when off grid...
7) Where battery venting is not a concern.
8) Were a SOC meter capable of accurately measuring SiO2 SOC is available (TBD)...”
I would again submit that much of this depends on region and is application dependent -JMO
3 tons
