So I've had a 300 watt Renogy solar setup on my trailer for about 1 1/2 years now. It consisted of 3 - 100 watt panels connected in parallel running through a 30 amp Wanderer PWM controller. I was pretty happy with the performance but always expected to upgrade down the road.

Last week I ordered another 100 watt panel and a new 40 amp Rover MPPT. I mounted the new panel and reconnected my panels in series.

I head out next week for 5 days boondocking lakeside on the eastern Sierras so we'll see if I notice an improvement.

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