Scott Brady
Founder
I have been researching batteries and some of the technical aspects of an auxiliary system, solar panels, etc.
The evaluation starts with determining LOAD, which is the total amperage draw for the accessories while parked (and in summer).
Load:
Fridge: 30 amps (12 hours x 2.5 amps)
2m Radio: 16.8 amps (24 hours x .7 amps)
Fan: 16 amps (8 hours x 2 amps)
Light: 1 amps (4hours x .25 amps) note: 12 watt, 120v light
Misc: 30 amps (Running computers, charging batteries, inverters, etc. 120w x 3 hours)
24 hour period: 93 amps!
My auxiliary battery Optima blue top (55ah) has a Depth of Draw (DOD) capacity of 25 amps (for max battery life). That leaves me 68ah short.
So, that is a big problem (at least in summer months).
There are ways to help mitigate the under-capacity, which includes running the car for a period of time, installing solar panels, etc.
Are my calculations correct? Any ideas?
I am looking into solar right now...
The evaluation starts with determining LOAD, which is the total amperage draw for the accessories while parked (and in summer).
Load:
Fridge: 30 amps (12 hours x 2.5 amps)
2m Radio: 16.8 amps (24 hours x .7 amps)
Fan: 16 amps (8 hours x 2 amps)
Light: 1 amps (4hours x .25 amps) note: 12 watt, 120v light
Misc: 30 amps (Running computers, charging batteries, inverters, etc. 120w x 3 hours)
24 hour period: 93 amps!
My auxiliary battery Optima blue top (55ah) has a Depth of Draw (DOD) capacity of 25 amps (for max battery life). That leaves me 68ah short.
So, that is a big problem (at least in summer months).
There are ways to help mitigate the under-capacity, which includes running the car for a period of time, installing solar panels, etc.
Are my calculations correct? Any ideas?
I am looking into solar right now...