Electrical: DC AC Conversions - Efficiency
I am an Electricity Novice: Assumptions: Boon-docker - does not use shore power, uses Solar Panels and Batteries, or generator. Refrigerator does not have propane option...electric only, AC or DC. ...
Forum Discussion
Your output watts is charger voltage x amps to the battery. However the battery voltage starts at whatever, say 12.3 and rises as the charge goes on. I am not sure which voltage to use for the output, charger (as set with a variable voltage charger) or actual battery voltage on a spot check.
See my Kill-A-Watt results posted earlier.
You need to dial down the Magnum to be at or under the Honda's 13.3A and see what DC amps you get as output on low batteries (so they will accept those amps for sure---if the batts are not low, they won't accept that many amps and you will get the wrong idea)
How low is low enough depends on the size of the bank in AH. Bigger bank means you can be higher in SOC and they will still accept the amps. You will find out by trial and error or just way overshoot and not have that as an issue.
Once you know how many amps you can charge with initially, it is easy to say how long it will take to recharge the bank to any SOC, given that you know the charger's high voltage set point (for doing the Absorption stage), the size of the bank in AH, and the SOC at the start of the recharge.
(A veiled threat to post my ugly graph again! :) )
See my Kill-A-Watt results posted earlier.
You need to dial down the Magnum to be at or under the Honda's 13.3A and see what DC amps you get as output on low batteries (so they will accept those amps for sure---if the batts are not low, they won't accept that many amps and you will get the wrong idea)
How low is low enough depends on the size of the bank in AH. Bigger bank means you can be higher in SOC and they will still accept the amps. You will find out by trial and error or just way overshoot and not have that as an issue.
Once you know how many amps you can charge with initially, it is easy to say how long it will take to recharge the bank to any SOC, given that you know the charger's high voltage set point (for doing the Absorption stage), the size of the bank in AH, and the SOC at the start of the recharge.
(A veiled threat to post my ugly graph again! :) )
