Im setting up a battery bank for emergency use mainly for ham radio use
Im in the UK I've enclosed a basic diagram to show what i have so far
Ive 3 banks of batteries
bank 1 are 33ah
bank 2 are 40ah
bank 3 are 55ah
They are being float charged at moment via a 25amp dc supply at 13.8 v
I intend to keep them charged by using the grid electric but later I plan to add solar panels for emergency charging as well as my generator
The output of my bank are all connected together via fuses and CP3-4 and then to my 12 supply rail in my shack via another 25 amp circuit breaker
The Reason Im setting this up is due to the recent flood over here and power went of in some areas
I can add to the bank over time As im getting the batteries free. as they are comming from mobility scooters.The batteries are used but they are taken out of service either after 9 months or 12 months as they are done under contract. and new one replaced
the batteries are wired for 12v output. what size panels would i need to be looking at
to keep them charged for standby use at moment the ampmeter is just showing a little over 1/2amp charge going to batteries. but what would i be looking at to charger them for a 20% dishcharge
bank 1 total 132 AH
bank 2 total 160 AH
bank 3 toatl 220 AH
so i presume ive a total of 512AH
I know the true figure will be lower as they are used
all batteries are Sealed Lead acid Batteries
any ideas or pointers