How many Ah
I need a battery bank to power a mini fridge 1.3 amps @ 120v for 48 hours and a electric blanket 200 watts @120v 8 hours as well as computer and cell phone charging, how many Ah will I need?
Forum Discussion
The 10x estimate for converting AC amps to DC is yes a "Back of the enevelope" but I've found it to be amazingly close so long as you do not go over 100 Amps DC with it (And we are only doing 13 here) also the fridge is designed for a 50% duty cycle. How hot it is around it will adjust this so when I gave my estimate I did a divide by two
But since DEEP CYCLE batteries need to be kept at least half full.. I doubled back after adding in the hot pad.. (By the way if you can get by without it it may help)
I've done a lot of relative current measurements between Inverter in and out.
Also you can greatly reduce battery need with something like a Honda or Yahama inverter Generator.. A pair of GC2 can be charged by a progressive Dynmics converter say a 9245 or 9260 The Honda EU100i should be able to handle those the Yahama EF1200i will HOWEVER you are running full bore when the converter is doing likewise.. A 2000 or 2400 would be much quieter and run the larger 60 amp converter.. Use the generator during the day shut down long about sundown or 7pm you should be good and not garner complaints.
But since DEEP CYCLE batteries need to be kept at least half full.. I doubled back after adding in the hot pad.. (By the way if you can get by without it it may help)
I've done a lot of relative current measurements between Inverter in and out.
Also you can greatly reduce battery need with something like a Honda or Yahama inverter Generator.. A pair of GC2 can be charged by a progressive Dynmics converter say a 9245 or 9260 The Honda EU100i should be able to handle those the Yahama EF1200i will HOWEVER you are running full bore when the converter is doing likewise.. A 2000 or 2400 would be much quieter and run the larger 60 amp converter.. Use the generator during the day shut down long about sundown or 7pm you should be good and not garner complaints.
