Russ Webb

@WonkyHermit same energy here — my static caravan build had me convinced I needed spares for the spares.

@NQ_Sparks fair point on application — I've got a static caravan setup and was briefly tempted by these myself. The thing that made me pause wasn't the grade B cell argument, it was the BMS.

@RiverFinn that's a really useful distinction — static voltage vs voltage under load. I had something similar crop up on my static caravan setup.

Had exactly this on my static caravan setup. Worth checking whether your battery monitor's shunt is positioned correctly — if it's not on the negative terminal of the battery itself (with...

RussWebb replied: @ShaunKelly87 that's a fair point actually — I suppose I'm just not used to watching it drop and not knowing when the sun's coming back.

@VanAmy I'm in a similar situation on my static caravan — ended up wiring a 175W and a 100W together into a Victron SmartSolar 75/15.

RussWebb | 64 posts | 🔌 Still Learning Did exactly this migration on my static caravan last year — went from 12v to 24v with a MultiPlus 24/3000.

Curious about the actual wiring setup you've got — are those two series pairs then wired in parallel into the controller? I've got a similar situation on my static caravan, mixing a couple of...

Been running a similar setup on my static caravan before I switched, and the penny finally dropped for me when I started actually logging the voltage my panels were producing versus what the PWM...

RussWebb | 47 posts Worth flagging — if you're running those panels in series you'll want to double-check the 75/15's max input voltage (75V).