LiFePO4 - SOK or Renogy.
Not looking for a big bank or high charge/discharge currents. Don't need charging below freezing. In Canada things become difficult/expensive. Narrowed down to these 2: 1)SOK, 100AH, $CAD 975 ...
Forum Discussion
pianotuna wrote:StirCrazy wrote:
Sio2 might do this also, would explain thee high discharge capability that is close to a LFP . so during the "bulk Phase the LFP will charge way faster than a LA battery. and then when the LA goes into adsorption the LFP will just keep flying as it doesnt kick into that till about 97% for a few min. so over a LA yes there will be a lit faster charging over the whole range, even if your charger output is the same.
Steve
Steve,
SiO2 may be discharged at 2.43 C continuous or 9 C for ten seconds iirc. This makes them ideal for running heavy draw items, such as a microwave.
Most LiFePo4 battery management systems limit discharge to 1 C
On the charging side, SiO2 are recommended to be charged at 0.25 C.
Most LiFePo4 may be charged at 1 C, unless the temperature is too low. Below that -4 f, charging promotes the formation of dendrites.
Standard lead acid are recommended to be charged at 0.125 C. Faster than that and the battery simply gasses. If it is not sealed, adding distilled water can be done.
yup, all good point, LFP if you want to charge or discharge must be in a compressed case so the batteries can't expand. that why the guys who roll there own do that and have a adjustable BMS so they can tweek there settings, but in the real world that discharge of 1C isnt realy that big of an issue. with the ability to have a 11"x6"x8" 280AH battery then @ 1C I have a sustained output of 280amps, if I have two then 560amps.
your talking about -4f charging again, thats -20C not verry many people will even camp in that so like I said before asside from the very special case (like yourself) thats a mute point..
Steve
