Forum Discussion
pianotuna
Sep 05, 2015Nomad III
Hi Niner,
The thicker the plate the slower the recharge.
I can hardly believe the difference with the telecom batteries. As an experiment I ran the fridge on 120 volts while trundling down the road. Duty cycle is 2:3 on the absorption unit. 325 watts. After 4 hours the batteries appeared to be fully charged.
Then I turned the fridge to the 12 volt setting which draws 30 amps. I came back to the RV 90 minutes later and voltage was still excellent.
I reset the fridge to propane and drove for about 20 minutes at highway speeds (47 mph) and 10 minutes of city driving.
When I plugged in--the Magnum charger went to float at about 7 amps. Part of that was the 'house' loads.
I am FLOORED at how fast the agm's recharge. Voltage from alternator started at 14 and as the day warmed up ended at 13.3.
The thicker the plate the slower the recharge.
I can hardly believe the difference with the telecom batteries. As an experiment I ran the fridge on 120 volts while trundling down the road. Duty cycle is 2:3 on the absorption unit. 325 watts. After 4 hours the batteries appeared to be fully charged.
Then I turned the fridge to the 12 volt setting which draws 30 amps. I came back to the RV 90 minutes later and voltage was still excellent.
I reset the fridge to propane and drove for about 20 minutes at highway speeds (47 mph) and 10 minutes of city driving.
When I plugged in--the Magnum charger went to float at about 7 amps. Part of that was the 'house' loads.
I am FLOORED at how fast the agm's recharge. Voltage from alternator started at 14 and as the day warmed up ended at 13.3.
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