The ups is rated at 650VA. This is a cheap 27$ ups.
Stock battery is a single tiny 7AH Seal Lead Acid.
I jerry rigged a 90AH lifepo4 battery and installed a fan to prevent the UPS from overheating during long charge and discharge.
BMS is 10a discarge and 5a charge.
The setup is OK for my usage but charging is really slow.
It has been 3days now but the battery is still at 13.26v.
Im afraid if i get succeeding 8hrs blackouts the ups would not be able to charge quickly and i lose power.
I am thinking of buying a 5a 14.6volt charger to supplement the charging of the ups.
Would it work? UPS charging the battery plus a 2nd charger?
I jerry rigged a 90AH lifepo4 battery and installed a fan to prevent the UPS from overheating during long charge and discharge.
BMS is 10a discarge and 5a charge.
The setup is OK for my usage but charging is really slow.
It has been 3days now but the battery is still at 13.26v.
Im afraid if i get succeeding 8hrs blackouts the ups would not be able to charge quickly and i lose power.
I am thinking of buying a 5a 14.6volt charger to supplement the charging of the ups.
Would it work? UPS charging the battery plus a 2nd charger?