PowerMax PM3-55LK 12 Volt, 55 Amp Converter/Charger
I bought this from DonRowe, promptly shipped and they had the best price.
Reason I bought it - After some adult beverages, the 55 amp charge current and ability to adjust charging voltage looked very attractive.
Additional justification - found Battleborn batteries gave it ok to use for Li batteries.
Peeking at the manual I found that you can switch it and use it as a benchtop PS.
Fast Forward few months, well outside return period and my EVE cells are here.
Decided to charge my fully depleted 280AH with PowerMax after adjusting the voltage to 14.2 volts.
Charging -
Worked as designed, started to charge at 50 amp, the EVE cells started to heat up a little.
Fan turned on and everything was looking good till RIGHT at 30 mins the voltage dropped to 13.5v.
Some peeking I found that the charge does BOOST charge at 14.2 v for ONLY 30 mins then drops to the lower volts.
Conclusion -
USELESS for my LIFEPO4 charging needs, I can't recommend it, unless you want to keep rebooting charger to reset it.
Future -
I called PowerMax and they said they have a new line of improved PM3s coming out in March. Unfortunately, these might have a times charging function too.
Alternate -
You could set it to constant voltage output mode and use it to charge and pray that BMS cuts off or ask your ex-girlfriend to watch it.
I bought this from DonRowe, promptly shipped and they had the best price.
Reason I bought it - After some adult beverages, the 55 amp charge current and ability to adjust charging voltage looked very attractive.
Additional justification - found Battleborn batteries gave it ok to use for Li batteries.
Peeking at the manual I found that you can switch it and use it as a benchtop PS.
Fast Forward few months, well outside return period and my EVE cells are here.
Decided to charge my fully depleted 280AH with PowerMax after adjusting the voltage to 14.2 volts.
Charging -
Worked as designed, started to charge at 50 amp, the EVE cells started to heat up a little.
Fan turned on and everything was looking good till RIGHT at 30 mins the voltage dropped to 13.5v.
Some peeking I found that the charge does BOOST charge at 14.2 v for ONLY 30 mins then drops to the lower volts.
Conclusion -
USELESS for my LIFEPO4 charging needs, I can't recommend it, unless you want to keep rebooting charger to reset it.
Future -
I called PowerMax and they said they have a new line of improved PM3s coming out in March. Unfortunately, these might have a times charging function too.
Alternate -
You could set it to constant voltage output mode and use it to charge and pray that BMS cuts off or ask your ex-girlfriend to watch it.
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