Lifepo4 float setting?
I have not had to deal with a float setting so far with PWM controllers but I have a Victron 75/15 coming tomorrow and reading up on the settings,it is confusing especially the float setting..Some say...
Forum Discussion
I agree with Time2roll…
IMO (Sad as it is…), Since earnest LiFePO4 post here have a tendency to get corrupted by ‘slight of hand’ theorist (SiO2 battery spin-masters busy at their crusade…), one need be wary of their long run at anti-LFP mischief - ‘Caution, extreme discernment required’, comes to mind!!…
Thus, I would recommend a solid information source, free of the imputed confusion - here’s what Solacity states - info here is uncorrupted and based in reality:
https://www.solacity.com/how-to-keep-lifepo4-lithium-ion-batteries-happy/
“Lithium-ion batteries are charged in two stages: First the current is kept constant, or with solar PV that generally means that we try and send as much current into the batteries as available from the sun. The Voltage will slowly rise during this time, until it reaches the ‘absorb’ Voltage, 14.6V in the graph above. Once absorb is reached the battery is about 90% full, and to fill it the rest of the way the Voltage is kept constant while the current slowly tapers off. Once the current drops to around 5% – 10% of the Ah rating of the battery it is at 100% State-Of-Charge.”
And then there’s BattleBorn (on charging):
https://battlebornbatteries.com/how-do-i-charge-my-rv-battery/
FWIW, In my case, using a single stage MPPT controller set at 13.x volts, and short of occasional cell-balancing, I seldom find a need for a higher voltage, this since LFP seldom require a 100% recharge, so this works well for me (Be advised, I have two parallel systems, another with a PMW controller set at 14.x volts )…Therefore, to some degree, individual preference, technique and charge equip all plays a roll - with a bit hands-on experience, I believe you’ll find your battery to be most forgiving and highly receptive to receiving a charge pretty much regardless of settings…Again, JM hands-on based opinion…
3 tons
IMO (Sad as it is…), Since earnest LiFePO4 post here have a tendency to get corrupted by ‘slight of hand’ theorist (SiO2 battery spin-masters busy at their crusade…), one need be wary of their long run at anti-LFP mischief - ‘Caution, extreme discernment required’, comes to mind!!…
Thus, I would recommend a solid information source, free of the imputed confusion - here’s what Solacity states - info here is uncorrupted and based in reality:
https://www.solacity.com/how-to-keep-lifepo4-lithium-ion-batteries-happy/
“Lithium-ion batteries are charged in two stages: First the current is kept constant, or with solar PV that generally means that we try and send as much current into the batteries as available from the sun. The Voltage will slowly rise during this time, until it reaches the ‘absorb’ Voltage, 14.6V in the graph above. Once absorb is reached the battery is about 90% full, and to fill it the rest of the way the Voltage is kept constant while the current slowly tapers off. Once the current drops to around 5% – 10% of the Ah rating of the battery it is at 100% State-Of-Charge.”
And then there’s BattleBorn (on charging):
https://battlebornbatteries.com/how-do-i-charge-my-rv-battery/
FWIW, In my case, using a single stage MPPT controller set at 13.x volts, and short of occasional cell-balancing, I seldom find a need for a higher voltage, this since LFP seldom require a 100% recharge, so this works well for me (Be advised, I have two parallel systems, another with a PMW controller set at 14.x volts )…Therefore, to some degree, individual preference, technique and charge equip all plays a roll - with a bit hands-on experience, I believe you’ll find your battery to be most forgiving and highly receptive to receiving a charge pretty much regardless of settings…Again, JM hands-on based opinion…
3 tons
