Easy & Cheap way to determine battery draw
I would like to do some boondocking in Oct. How can I determine battery drain when I turn on a device, like a TV, amp, etc... while boondocking? Looking for an easy/cheap method to accomplish. Thanks
Forum Discussion
Hi,
Although the kill-a-watt only measures AC, you can "cheat" and use it to measure DC by disconnecting the battery and powering the RV directly from the converter.
If you know the power factor of the converter (Progressive Dynamics is 0.7) you can change the watts into DC amps by dividing by 12 (or 13.6) depending on the converter output.
Don't do this with one of the older converters that requires a battery for stabilizing the DC voltage.
Although the kill-a-watt only measures AC, you can "cheat" and use it to measure DC by disconnecting the battery and powering the RV directly from the converter.
If you know the power factor of the converter (Progressive Dynamics is 0.7) you can change the watts into DC amps by dividing by 12 (or 13.6) depending on the converter output.
Don't do this with one of the older converters that requires a battery for stabilizing the DC voltage.
