Mohsin Ali
New Member
About 11.6 voltsHow deep does the battery cycle at night?
40 amps (15 amps load included)How much current does it get when recharging?
About 11.6 voltsHow deep does the battery cycle at night?
40 amps (15 amps load included)How much current does it get when recharging?
But if I add more panels than charging current will also increase, is this the case?40A SCC - 15A load = 25A battery
25A / 145 Ah = 0.17C
Maybe a bit high (check the manual) but not by a large amount.
I'm not sure what SoC 11.6V works out to. It depends on whether "resting" or "under load".
If your SCC keeps track of Ah or Wh, and you can subtract what load took, that will give a better DoD figure. (but recharging has to put back something like 120% of what was used.)
You are probably OK for now, design a future larger system to work the way you want.
Again...But alone Mppt will not help? It will give what it gets?
Thanks alot you explained it very well actually I was asking exactly what you explained.Again...
Charge controllers do not push power.
They provide wattage to be drawn at a specific voltage level.
If the battery can only draw 10A, it will only draw 10A, it doesnt matter how many amps are available from solar.
If you have an 80A controller and a 10A battery, as long as the wiring is capable of 80A, and you have 80A of loads, the battsry will take 10A, and the loads will take the rest, if there arent wnough loads, the rest will just not be drawn.
Battery is Flooded Lead Acid, 12 volts 145 Ah , Solar panels are 880 watts combine and 80a SCC
Starter battery is designed to handle high amps. Deep cycle battery may not be.My RV has a 180 amp alternator that charges the starter battery, so do I have a problem?
No I don't, the lead acid battery determines the charge current