Forum Discussion

Explorer

Oct 17, 2018

How long will this battery last using inverter?

Ordered a new inverter, Wagan smart ac400,sells for appx $40 and is modified sine w .6 amp draw no load, rated 90 percent efficiency, full time fan and is said to run a true 400 Watts 24 hrs w surge t...

wa8yxm

Explorer III

Oct 17, 2018

100 amp hours. IF Deep cycle you can use 50 If not 25
200 amp load at 90% conversion effiency means roughly 220 watts
Divide by 12 .. Well normallyu I'd just divide 200 by 10 to give 20 amps at 12volts. Add in the Purkett (Spelling) effect.. about 20 minutes.

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