Forum Discussion
Almot
Aug 22, 2013Explorer III
Tell him to get a $3 multimeter, do his 6 hours charging, rest battery 24 hours without loads and check the voltage. If it's less than 12.7, then it's not full.
Laptop + phone + inverter losses + lights + pumps + radio (both playing and standby) + detectors = can be anywhere from 15 to 25 AH, depending on lights. DC circuit of propane fridge will draw another 10-15 AH, could be 20 AH with fancy features like door defroster. Total 25-45 AH a day. What is his "marine battery" - 80 AH? If it's not fully charged at the beginning (I suspect), it will be down to 25% in one day, just like he said. Or if it's 60 Ah and fully charged - it will be down to 25% in a day.
Laptop + phone + inverter losses + lights + pumps + radio (both playing and standby) + detectors = can be anywhere from 15 to 25 AH, depending on lights. DC circuit of propane fridge will draw another 10-15 AH, could be 20 AH with fancy features like door defroster. Total 25-45 AH a day. What is his "marine battery" - 80 AH? If it's not fully charged at the beginning (I suspect), it will be down to 25% in one day, just like he said. Or if it's 60 Ah and fully charged - it will be down to 25% in a day.
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