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...
Forum Discussion
650 watts /10 = 65 amps
Peukert for a 100 amp-hour battery @ 65 amps is 30 minutes to 50% state of charge. The battery would be totally dead in about 54 minutes.
The 3 minute run at 65 amps is going to cost the battery about 4 amp-hours of the capacity.
This is NOT recommended.
Doubling the battery bank to 200 amp-hours gives a result of 66 minutes to 50% state of charge.
Doubling again to 400 amp-hours gives a result of 150 minutes.
My own bank of 556 would, in theory, give me 222 minutes @ 65 amps.
Real life numbers may be a lot lower, but won't be better than the above results.
Peukert for a 100 amp-hour battery @ 65 amps is 30 minutes to 50% state of charge. The battery would be totally dead in about 54 minutes.
The 3 minute run at 65 amps is going to cost the battery about 4 amp-hours of the capacity.
This is NOT recommended.
Doubling the battery bank to 200 amp-hours gives a result of 66 minutes to 50% state of charge.
Doubling again to 400 amp-hours gives a result of 150 minutes.
My own bank of 556 would, in theory, give me 222 minutes @ 65 amps.
Real life numbers may be a lot lower, but won't be better than the above results.
