Battery Monitors
I've nearly completed my upgrade to my Solar System(Pics coming when I'm done). Thinking(after the fact of course)that I should have considered a Battery Monitor in the upgrade, or at least preparatio...
Forum Discussion
"How can you tell if the AH counter is correct wrt to SOC?"
My system is made up of 20 prismatic 100ah cells, 4s5p= 500ah 12v. I have EMS/ CPU (BMS) system a little more robust than a dropin battery.
The Magnum has nothing to do with AH counting it's done through the EMS of the Elite GBS batteries.
The EMS system has a minimum recorded resolution of +/- 0.5A so any current below that level is not accounted for. The system could be setup for a finer resolution, but the shunt value would have to be reduced which reduces the systems maximum current capability.
The system will reset the capacity to 100% whenever the pack voltage reaches 3.49 to 3.52 V/cell on average.
No, you don't need to charge to 14.6v (maybe dropins so they can sync their capacity % depends on the bms). A charger that can be adjusted to your specific needs is best, not one size fits all.
I have my Magnum inverter/ charger programmed Bulk 14.1v, Absorb 14.2v (10 minute minimum, can't be turned off), Float 13.6v. The Magnum PT100 is linked in the Me-Arc to follow the settings of the IC.
"Li batts are just weird!"
That they might be but after living off them for 43 months now using 99% of the time charging with solar, using them at low SOC with heavy draw items, not worring if they're fully charged or not, with 500 + full cycles on them now.
A happy camper here.
My system is made up of 20 prismatic 100ah cells, 4s5p= 500ah 12v. I have EMS/ CPU (BMS) system a little more robust than a dropin battery.
The Magnum has nothing to do with AH counting it's done through the EMS of the Elite GBS batteries.
The EMS system has a minimum recorded resolution of +/- 0.5A so any current below that level is not accounted for. The system could be setup for a finer resolution, but the shunt value would have to be reduced which reduces the systems maximum current capability.
The system will reset the capacity to 100% whenever the pack voltage reaches 3.49 to 3.52 V/cell on average.
No, you don't need to charge to 14.6v (maybe dropins so they can sync their capacity % depends on the bms). A charger that can be adjusted to your specific needs is best, not one size fits all.
I have my Magnum inverter/ charger programmed Bulk 14.1v, Absorb 14.2v (10 minute minimum, can't be turned off), Float 13.6v. The Magnum PT100 is linked in the Me-Arc to follow the settings of the IC.
"Li batts are just weird!"
That they might be but after living off them for 43 months now using 99% of the time charging with solar, using them at low SOC with heavy draw items, not worring if they're fully charged or not, with 500 + full cycles on them now.
A happy camper here.
