Tilting Solar panels makes a big difference!
I had 2 100 watt Renogy solar panels on my roof and they seem to only have an output of 3.4 amps each. I added a third panel and now the max is around 10 amps this time of the year for the 3 panels. ...
Forum Discussion
DAS26miles wrote:You will not gain much on a 12 volt panel configuration. MPPT's big advantage is using panels that are higher volts. This can be accomplished by using a panel that is 24 volts or higher or connecting panels in series. If panels are connected in series, they must have similar current ratings. If connected in parallel, they must have similar voltage ratings. The portable unit mentioned previously has panels that can not be easily reconfigured.
My controller is the the 30amp Renogy Adventurer. I may upgrade to a MTTP depending on how much more amps I can get out of the existing panels.
If you want a better PWM controller you might want to consider the Grape GS-PWM-40BT. It's 40 amps and has Bluetooth. Home Depot is selling it for $59.98.
40 Amp PWM Solar Charge Controller with Bluetooth
