My 260 has 2 batteries and came with a 15 watt flexible solar panel that was no longer charging- I measured 16V and only 5mA. I'm on a mooring, so no shore power. Time for an upgrade. I decided on a 50 watt Renogy solid frame panel mainly because it was largest that would fit the width of the 260 stern rail. I had seen other installs posted here using the Sea Dog rail clamps which supported a small panel on the rail and allowed easy adjustment or removal. My rail has the vertical bimini support poles, so the panel had to sit completely outboard of the rail, increasing the torque on the rail clamps as compared to mounting the clamps under the panel. I used 3/16 aluminum bar stock to mount the clamps to the panel. Unfortunately the weight of the panel caused it to slowly rotate down on the clamps, even after cleaning and tightening everything. Too much weight hanging out there. I didn't want another rail mount in the middle of my back when I sit at the helm, so I made a horizontal support for the other side out of 1 1/4" conduit mounted in the mast crutch hole. Works great, and can adjust angle with different lengths of conduit if necessary. It may partly block the stern light so will remove on the rare occasion we are out after sunset.
For the charge controller I went with a Morningstar Sunsaver Duo PWM 2-bank controller to charge both batteries at the same time. I considered an ACR to keep both batteries charged, but it seemed overly complicated for my simple setup. I have a 1-2-both switch- charge controller is not wired through the switch but directly to each battery.
Seems to be keeping things charged up well. Some photos below.
For the charge controller I went with a Morningstar Sunsaver Duo PWM 2-bank controller to charge both batteries at the same time. I considered an ACR to keep both batteries charged, but it seemed overly complicated for my simple setup. I have a 1-2-both switch- charge controller is not wired through the switch but directly to each battery.
Seems to be keeping things charged up well. Some photos below.
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