Killer Amps
I want to pull ten amps out of a little 35 ah battery for one hour and then fully recharge. Will this heavy draw destroy the battery? I know it is a small battery.
Forum Discussion
Hi,
The "rule of thumb" for heating is 1.25 watts per cubic foot.
So 163 watts would be the minimum. I would stick with the 250 watt heater myself since you wish to take the chill off--quicker is better! There is also a contribution of waste heat from the inverter.
250 watt-hours =~ 21 amp-hours @ 12 volts.
To run the heater for one hour a 100 amp-hour flooded battery would be a good fit.
https://www.batterystuff.com/kb/tools/calculator-sizing-a-battery-to-a-load.html
The "rule of thumb" for heating is 1.25 watts per cubic foot.
So 163 watts would be the minimum. I would stick with the 250 watt heater myself since you wish to take the chill off--quicker is better! There is also a contribution of waste heat from the inverter.
250 watt-hours =~ 21 amp-hours @ 12 volts.
To run the heater for one hour a 100 amp-hour flooded battery would be a good fit.
https://www.batterystuff.com/kb/tools/calculator-sizing-a-battery-to-a-load.html
TomG2 wrote:
A Camper Shell, for those who do not know about them, is simply a fiberglass shell that fits over the bed of a pickup. Mine creates a box approximately 6.5' X 5' X 4' which can easily be warmed with any kind of small heater.
