diy solar

diy solar

Recent content by prune

  1. prune

    how to use LiFePO4 for a 48V UPS battery (APC 2200Va)

    UPS is a 2200Va. I'm not using all this, I do have 2 desktops, a 8 disk array, 2 monitors, a laptop, internet router/fiber/wifi. And I want it to last as long as possible :) It can stays almost 2h with fresh lead-acid batteries with 22Ah 48V right now. This is pure backup in case of power...
  2. prune

    how to use LiFePO4 for a 48V UPS battery (APC 2200Va)

    Hi there, I have to change the batteries of my APC UPS 2200Va (SUA2200) AGAIN, after 2.5 years. It is using 4 batteries, 12V 18AH (22AH on mine) in serie to form a 48V battery. Replacement is a 300 CAN$ budget. I'll check tomorrow the real charging voltage of the unit. I'm looking to replace...
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