Does anyone know much about charging batteries with an AC battery charger?
I'm wondering why my AC to DC chargers are dying after about 24hrs? It doesn't make sense.
All I can think of:
I'm wondering if I run my off grid generator on a cloudy day - can the sun poking out randomly and charging at say 57 volts vs the 55 volts from an AIMS plugin AC to DC charger will it back feed the extra 2 volts higher into the aims charger? Even on a cloudy day but brighter I have seen up to 1000w being made by the 24 solar panels and like 50 watts on a dark grey day.
Details:
I run my genny after a few days of no sun to charge up my 48v batteries. The batteries are 28kwh so it will never get the battery topped up or even past 50% that I have seen. I assume the charger is bulk charging the whole time since I never see it get above 54v while 58v is full. In the past two years my generator shows 380 hours all charging the batteries on cloudy weeks. 380hrs÷ 8 hr run time = 47.5 tanks of gas ÷2 years = 24 tanks of gas a winter. I have to charge sometimes once in the day and the night, but mostly just charging at night. My genny is a Yamaha inverter gen and the power meter shows it only 4 out of 5 bars to run the AIMS charger and not popping the gen breaker or showing an over power error.
If my theory is correct I worry about buying say a 48v golf cart charger even if it's lifepo capable and I will now be on my 3rd AIMS charger in as many years with only 190hrs average each charger.
Most chargers seem to be 55v max vs 58v lifepo max.
Does anyone have a lot of experience with charging via your gen?
Thanks!
I'm wondering why my AC to DC chargers are dying after about 24hrs? It doesn't make sense.
All I can think of:
I'm wondering if I run my off grid generator on a cloudy day - can the sun poking out randomly and charging at say 57 volts vs the 55 volts from an AIMS plugin AC to DC charger will it back feed the extra 2 volts higher into the aims charger? Even on a cloudy day but brighter I have seen up to 1000w being made by the 24 solar panels and like 50 watts on a dark grey day.
Details:
I run my genny after a few days of no sun to charge up my 48v batteries. The batteries are 28kwh so it will never get the battery topped up or even past 50% that I have seen. I assume the charger is bulk charging the whole time since I never see it get above 54v while 58v is full. In the past two years my generator shows 380 hours all charging the batteries on cloudy weeks. 380hrs÷ 8 hr run time = 47.5 tanks of gas ÷2 years = 24 tanks of gas a winter. I have to charge sometimes once in the day and the night, but mostly just charging at night. My genny is a Yamaha inverter gen and the power meter shows it only 4 out of 5 bars to run the AIMS charger and not popping the gen breaker or showing an over power error.
If my theory is correct I worry about buying say a 48v golf cart charger even if it's lifepo capable and I will now be on my 3rd AIMS charger in as many years with only 190hrs average each charger.
Most chargers seem to be 55v max vs 58v lifepo max.
Does anyone have a lot of experience with charging via your gen?
Thanks!