|
Classic simple electrical planning calculation. Amp hours in must be greater than amp hours out. Figure out how many hours or parts of an hour each device will run each day and how many amps each one draws. Multiply to get amp hours. Add em up and it must be less than the number of amp hours the charger puts out in 24 hours. For example, a 15 amp charger puts out 360 amp hours per day. That means you can use devices totaling 15 amps all day without losing your battery charge.
There is one slightly obscure side issue. As the battery approaches full charge it will not accept the full 15 amps. Even so, the charger will continue to bypass the battery and provide the full 15 amps as long as the load is connected. It's pretty unlikely that scenario would develop unless you are using a whole lot of stuff, like that 12 volt tanning booth.
Dick Pluta
AEGEA
Nassau, Bahamas
|