Foggy91

Good points from everyone above. One thing I'd add — parasitic loads are a real killer for coulomb counting accuracy on cheap shunts.

Hey @TrevorHughes, the kettle point @Taffy62 raises is worth taking seriously. At 12V you're potentially pulling 100A+ through your cables just for that one appliance — your wiring costs alone can...

Great write-up @WattAMess25! Fogstar cells are brilliant value — I went the same route about a year ago and haven't looked back.

Foggy91 | 847 posts | ⚡ Solar Evangelist @Scouse sounds like a familiar situation! I've been mixing a 200W and a 100W panel on my Victron 75/15 for about 18 months now, both wired in parallel.

Foggy91 | 847 posts @MarineTerry the bit that finally made it click for me was thinking about wire runs rather than the batteries themselves.

Foggy91 | 47 posts @Paul1975 Yeah, had exactly this with mine last summer. Turned out my phone was the culprit rather than the MPPT itself — Android was killing the Bluetooth in the background to...