I've got a fairly basic setup in my shed — 200W panel going through a Renogy Wanderer 30A PWM controller into two 110Ah AGM batteries wired in parallel.
Great thread @AndyGraham — I ran a similar setup in a 24ft hut in Cumbria for three winters so know exactly what you're dealing with.
One thing that made a massive difference for us was adding a...
JimWilliams71 | 847 posts | ⚡ Solar Addict
@GillGibson had almost identical grief last spring. Worth checking your cell internal resistance readings in the JK app — even brand new Eve cells can...
Been scratching my head over this one for a couple of weeks now. My Victron SmartSolar 100/30 is consistently showing battery voltage about 0.3–0.4V higher than what my separate battery monitor...
JimWilliams71 | Posts: 412 | Location: Derbyshire
One thing nobody's mentioned yet — check your Victron panel's Vmp against the two Renogys before wiring that third panel in parallel.
Really interesting thread this. @BatteryDoug and @WattLiz make fair points about the display layer, but I'd be cautious about ruling out the RS485 polling side just yet.
@TQ_Builds worth adding to what @BlownFuse said — if you can get physical access to the Cerbo, have a look at the sticker on the unit itself for the serial number.
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