Watts Help Needed.
I am trying to figure out how long a battery will last. I have Googled it and read a few sites but I still have a few questions. I have a small TV that I plugged into my Kill a Watt meter. That sho...
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2oldman wrote:jbfoster wrote:Maybe.. 50a is a lot for one battery. You're likely to see a huge voltage drop.
Almost forgot the 650 watt coffee maker to make a cup or two a day. That shouldn't be too much at 600 watts for about 3 minutes a cup.
Yes. Usual advice is to limit charging and discharging to 25% of battery AH in amps. So 25 amps with one 100AH battery would be with a 250w appliance on inverter. (The 25 limit is to give time for the internal chemistry changes in the battery to keep up with things)
I did run a test of higher amp inverter draws with one battery, but the 100AH battery was an AGM. Toaster drew 69 amps--got a 1.3v drop
Tried it with a much used 12v T-1275 Flooded (perhaps worth 125AH at the time) and same toaster drew 71 amps with a 1.2v drop.
