Forum Discussion

Mobile_sport's avatar
Mobile_sport
Explorer
Feb 06, 2016

Powermax boondocker charger problem

Honda eu2000i
Powermax boondocker BPCM-75
2 Sams club gc2 golf batteries
4 gage wire

The Powermax charger is hardwired to 2 samsclub gc2 golf batteries.
Typically I adjust the charge voltage to 14.8 volts and leave it then after about 14 minutes it automatically drops down to 13.6 volts , when I see it drop to 13.6v I adjust the voltage knob back up until Powermaxes voltmeter reads 14.8 volts again ,,,, and then it seems to stay at 14.8 volt until I shut it down ,,, I typically run it for 2-3 hours.
The problem is now and then when I set the Powermaxes dial to 14.8 it acts like it doesn't want to go up , (the voltage goes up slowly) and finally gets to 14.8v,
E.g I start the generator and then go dial the Powermaxes charge voltage up to 14.8 and nothing would change or the voltage would slowly climb to 14.8 volt and finally get to 14.8.
Now its like the voltage adjusting knob isn't working at all.
  • Mobile sport wrote:
    Honda eu2000i
    Powermax boondocker BPCM-75
    2 Sams club gc2 golf batteries
    4 gage wire

    The Powermax charger is hardwired to 2 samsclub gc2 golf batteries.
    Typically I adjust the charge voltage to 14.8 volts and leave it then after about 14 minutes it automatically drops down to 13.6 volts , when I see it drop to 13.6v I adjust the voltage knob back up until Powermaxes voltmeter reads 14.8 volts again ,,,, and then it seems to stay at 14.8 volt until I shut it down ,,, I typically run it for 2-3 hours.
    The problem is now and then when I set the Powermaxes dial to 14.8 it acts like it doesn't want to go up , (the voltage goes up slowly) and finally gets to 14.8v,
    E.g I start the generator and then go dial the Powermaxes charge voltage up to 14.8 and nothing would change or the voltage would slowly climb to 14.8 volt and finally get to 14.8.
    Now its like the voltage adjusting knob isn't working at all.


    Disconnect the unit vfrom the battery then check voltage. Unless it is failing under load it should tell you.