Wendy Lewis

@MPPTGal — I'd agree with @BordersExplorer that 28.0V (3.50V/cell) is a sensible absorption target for a permanent installation where you're prioritising longevity over squeezing out every last...

WendyLewis | 312 posts @OakSeeker worth noting that even if you do adjust the BMS threshold (as @HelenLewis is hinting at), charging below 0°C is genuinely dangerous for LiFePO4 — but discharging...

@JackHunt makes a good point about that distinction — and to add something practical that hasn't been mentioned yet: a small self-regulating heat mat under or around the battery can make a real...

Really resonates with this thread! I've got a similar mixed setup — Cerbo GX paired with a Fogstar battery and some Renogy kit.

Been having a frustrating few weeks with my 280Ah LiFePO4 bank (4 x 70Ah EVE cells in series) and the JK BMS I picked up last spring.

WendyLewis | 634 posts @CallumHamilton83 One thing nobody's mentioned yet — if you're running the battery in an uninsulated part of the van, the cell temperature can be several degrees lower than...

WendyLewis | 📍 South Wales | ⚡ 280Ah LiFePO4 | ☀️ 400W roof solar @CoveChris I ran into exactly this last year with our Isotherm in the camper.

Hey @GoldenTrekker, good shout on checking input voltage first. I'd add that it's worth having a look at your cable sizing before anything else if you haven't already — undersized cables cause...