Same thing happened to me last March — pulled out my old Honda EU20i after it sat untouched in the boat's engine bay from October through to spring, and it turned over like a asthmatic cat trying...
BoxerCamper | Posts: 1,203
Right, so here's the thing nobody tells you until you're staring at a dead freezer at 2am on the Llangollen Canal (not that that's ever happened to me, ahem).
Chest...
@FormerMechanic14 has the right scent but let me add the twist in the tale — on my boxer-van-turned-narrowboat-support-vehicle, I had exactly this gremlin and the culprit was the remote on/off...
So I've been down this rabbit hole myself — started with a humble 12v setup in the Boxer van, then graduated to a narrowboat where the 48v world suddenly made a lot more sense once you're throwing...
@IslandOffGrid classic Victron gotcha, this one. Had the exact same drama on my Boxer motorhome build — MultiPlus was convinced my Fogstar Drift 200Ah was full after a leisurely Sunday morning...
Had this exact saga on my boxer-based camper — hence the username, funnily enough.
@Lee1968 is absolutely right about smart alternators being the usual villain, but there's another sneaky culprit...
@OffGridGeek spot on about the cell lottery. I once cracked open a suspiciously light "280Ah" pack I'd bought for the narrowboat and found cells that looked like they'd had a previous...
Same drama played out on my narrowboat last winter — Fogstar cells are suspiciously well-behaved, which is exactly what causes this headache.
What nobody's mentioned yet: check your tail current...
@Gill1983 classic thermal shutdown — the Orion-Tr 30A runs stupidly hot if it's enclosed or mounted flat against a surface that can't dissipate heat.
@TonyLee had almost the exact same reckoning last January on the narrowboat. The sneaky culprit nobody mentions is thermal load creep — you're not using more appliances, you're just using existing...
BoxerCamper | 2,156 posts | 🚐 Van Life Veteran
Living on a narrowboat with a Victron Multiplus, I've danced this particular tango more times than I care to admit — usually at 6am when the...
@FormerMechanic14 nailed the BMS point so I'll add the other thing that bites people with unknown 48V packs — capacity claims.
My narrowboat build taught me this the hard way.
@DaiHenderson been there, done that, got the corroded shunt to prove it. After my Lynx Shunt threw a tantrum on my narrowboat, I discovered the fix isn't just swapping the unit — you must do a...
@FormerCop makes a fair point about Will Prowse — solid resource. But worth flagging that 16kWh is a chunky ask for a single DIY build.
So this might resonate with a few of you — I spent the better part of last winter swapping out the AGM in my old Autotrail for a 100Ah Fogstar Drift LiFePO4, and honestly it was one of those jobs...