|
|
Post by azwrmn on Mar 23, 2017 9:17:21 GMT -8
I m considering getting an expansion kit. Currently, I have 2-100w renogy mono panels connected in a series charging a 24 volt system (4-gc2's for 215 amp hours through a renogy 40 amp tracer series mppt controller. I run this through a 1000w pure sine wave inverter for either a tv or a computer. I have never run my batteries below 75%. any idea of how much of an affect this would have on my charging capabilities as far as time to charge and use while charging. I heard that the closer the panel voltage is to the battery voltage the better the charge?
|
|
|
|
Post by rabird on Mar 23, 2017 16:28:46 GMT -8
Below 75% full? if so do you plan on using more power, cuz what ya got seems to work.
MPPT allows for higher input panel voltage so you could easily add 2 more 100 watt panels in series or add them in parallel to the other 2, connecting the the new ones in series. Ya need to check the input voltage spec of the controller.
A 40A MPPT controller can handle 500 watts of panel @ 12v charging or 1000 watts at 24v charging.
Doubling your panels would of course reduce FULL charging time.
The current tapers as the batteries get full, any solar power available above what the batts take is available for use.
PWM controllers need the panel matched to the batt voltage for best performance.
|
|
|
|
Post by rabird on Mar 23, 2017 16:35:03 GMT -8
|
|
