Watt Gemma

Great thread, this catches a lot of people out. Worth checking your low temp discharge protection as well as charge — @Keith1977 is right about the charge side, but JK also has separate discharge...

Great thread this. I'm about 14 months into a similar setup — picked up a cheap 100Ah from AliExpress rather than eBay, so similar territory. One thing worth doing @BatteryDoug is a proper...

WattGemma | 312 posts @StormyViking the big danger with a standard alternator into LiFePO4 is that lithium accepts charge so readily at the start that it can pull the alternator into thermal...

Ha, @MariaJones that description is absolutely spot on 😄 Worth adding for @GaryLewis87 — with panels in series at those voltages, you might actually notice this effect more pronounced than folks...

Great points from everyone here. @Kate1970 is absolutely right to flag the load profile — that's really where the numbers live or die.

Really good thread this. @OffGridAlan makes a fair point about the Borders — I'd add that winter months up there you might be looking at genuinely poor solar days back to back, so whatever...

WattGemma | 1,204 posts @PaddyDavies one thing worth adding to what @JoeFisher and @CallumHamilton83 have said — with LiFePO4 you're actually using roughly 80-100% of rated capacity versus maybe...

Great points from @DefenderLife about charger profiles — worth adding that some chargers have a "maintenance" or "float" mode that's simply incompatible with LiFePO4 chemistry.