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  1. A

    Replacing lead acid to 18650 on my garage door opener.

    I have a motorized garage door, and in the last years I'm having issues with the 12v lead acid battery that came with the kit. The battery outputs only 0,5A in short circuit and the voltage drops to less than 8V when the door tries to open. It opens 1 time and them the battery is dead, not...
  2. P

    What's with MPP Solar unit having very low Power Factor?

    Hi there So I've got an MPP Solar PIP-5048GK 5KW 48VDC SOLAR INVERTER and 4x 12v 150ahr lifepo4's (in series.) When the MPP Solar unit is charging the batteries using mains power, at ~550 watts charging, a seperate kilowatt-hour meter says a power factor of ~0.5. I've got the charge voltage...