Advice on deep cycle setup?
Hello, I have a Safari van that I've converted into a camper. I replaced the starting battery with a Duracell Ultra Dual Purpose (Starting/Cycling) Battery that cost $105 (got it at batteries ...
Forum Discussion
The OP has a 700W draw for 20 minutes. This equates to 700W * (20/60) = 233WHs. If the battery were standalone and using the 10% rule he needs 23.3AH of charging to replenish. Since it is not standalone; "how many AHs would be offset by the alternator if he is driving for the entire 20 minutes?". How many AHs could be returned in the next AM drive?
Lets round up to 240Wh consumed and with an estimated half of missing Ahs provided by the alternator leaves 12wh. Back to work in the AM restores half so now the net Ah missing is 6Ah. I agree there will a small decrease in SOC each day. Top off will be needed and weekly is best practice.
Do we need 300W solar if we lose 6Ah daily?
Does he really need a $400 battery? Why not the SamsClub $179 100Ah AGM made by Deka East-Penn?
Will the 100Ah AGM battery be installed under the hood to replace the existing battery? I had a Safari and I could only fit a grp 24 Sears Diehard Platinum P-4 AGM with 68Ah.
We know the instant pot works on modified sine wave. PSW is not required. How about an inverter/charger under $300 that would also run his power tools?
IMHO, one night a week with the charger plugged in would complete the system.
This is all based on a big if that the current alternator or its replacement cannot carry the entire load while driving.
I could run tests in my driveway if anyone has any suggestions.
HTH;
John
Lets round up to 240Wh consumed and with an estimated half of missing Ahs provided by the alternator leaves 12wh. Back to work in the AM restores half so now the net Ah missing is 6Ah. I agree there will a small decrease in SOC each day. Top off will be needed and weekly is best practice.
Do we need 300W solar if we lose 6Ah daily?
Does he really need a $400 battery? Why not the SamsClub $179 100Ah AGM made by Deka East-Penn?
Will the 100Ah AGM battery be installed under the hood to replace the existing battery? I had a Safari and I could only fit a grp 24 Sears Diehard Platinum P-4 AGM with 68Ah.
We know the instant pot works on modified sine wave. PSW is not required. How about an inverter/charger under $300 that would also run his power tools?
IMHO, one night a week with the charger plugged in would complete the system.
This is all based on a big if that the current alternator or its replacement cannot carry the entire load while driving.
I could run tests in my driveway if anyone has any suggestions.
HTH;
John
