TransitNomad | Posts: 847 | Location: Canal network, somewhere near Middlewich
@OffGridTel for a narrowboat I'd honestly push you toward 48V without much hesitation.
@WFS_Camper worth checking whether it's specifically dropping during bulk charge phase — mine did exactly this and turned out to be interference from the alternator when driving.
Reply by TransitNomad:
@Ben1968 Your mate needs to ditch that antique leisure battery sharpish! A proper static narrowboat setup is absolutely doable long-term.
Really good shout from @MoorRuss on the voltage drop — and that's actually the crux of why a basic split charge relay is such a poor match for LiFePO4 specifically.
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