The degradation clock is ticking the more time you spend in the upper knee. For a fine balance, not gross.īut if your bank is way out of balance, and lets say it's a 400ah capacity, and only 500ma little bms bleeders/fets, well that's going to take waaaay too long to accomplish anything useful, hence the timeout to prevent one from spending a week doing so. The reason for this is that a bms with it's weedy little fets/balance resistors typically fire off at 3.5 to 3.55v (or should). Most high quality chargers are designed to hit at least 14.2v. It is your battery bank that is way out of balance to begin with.
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.īoth are designed properly. Unfortunately, these might have a times charging function too. I called PowerMax and they said they have a new line of improved PM3s coming out in March.
USELESS for my LIFEPO4 charging needs, I can't recommend it, unless you want to keep rebooting charger to reset it. Some peeking I found that the charge does BOOST charge at 14.2 v for ONLY 30 mins then drops to the lower volts. Worked as designed, started to charge at 50 amp, the EVE cells started to heat up a little.įan turned on and everything was looking good till RIGHT at 30 mins the voltage dropped to 13.5v.
55 amp 12 volt power converter manual#
Peeking at the manual I found that you can switch it and use it as a benchtop PS.įast Forward few months, well outside return period and my EVE cells are here.ĭecided to charge my fully depleted 280AH with PowerMax after adjusting the voltage to 14.2 volts. Reason I bought it - After some adult beverages, the 55 amp charge current and ability to adjust charging voltage looked very attractive.Īdditional justification - found Battleborn batteries gave it ok to use for Li batteries. I bought this from DonRowe, promptly shipped and they had the best price. PowerMax PM3-55LK 12 Volt, 55 Amp Converter/Charger
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