Wednesday, August 20, 2014
Testing out a new power inverter, 2.5 KW / 5KW peak. Some notes on this set-up I used a single group 24 Marine Battery. I got this set-up to power my furnace in-case of power outage, they are frequent in my neighbourhood (old lines) and for quiet operation a night, I have neighbours close by and didn't want to start a generator in the middle of the night, plus I have a couple of solar panels to charge the batts so a gen-set might not be needed.
Couple of things I found out:
1. Furnace draws 8 amps after startup, this pulls a whopping 90 amps at 12VDC!
2. This set-up did work but low volatge alarm goes off constantly 11VDC under load
3. 90 amp draw battery will only last about 45 min (about 3 heat cycles)
4. good enough for one night but would need 4 hours of solar to charge
What I learned
1. Scotty we, NEED MORE POWER
2. Plan on adding second group 24 Marine Battery
3. Use 0 AWG or better not four 10 AWG in parallel like in test set-up
4. More Solar!
Posted by N1IR at 7:39 PM