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Had this exact battle last winter. Worth knowing the JK app lets you adjust the low-temp protection threshold — I dropped mine to 0°C for discharge and kept charge cutoff at 5°C, which is the...
OffGridKing in Batteries & BMS 5 months ago
Robbo | 📍 Array | ⚡ Posts Funny you mention this — my shepherd's hut system was basically a dry run for exactly this kind of thing. One thing nobody seems to flag: vibration.
Robbo in Motorhome & Campervan 5 months ago thumb_up 3
RetiredChef26 | Posts: 2,156 Good thread this. One thing nobody's mentioned yet — with the Orion-Tr Smart running solo, you get proper charge profiling rather than the relay's dumb "voltage...
RetiredChef26 in DC-DC Chargers 5 months ago thumb_up 3
Chiming in as someone who's been on VRM for about two years now — the feature I don't see mentioned enough is the consumption patterns over weeks/months.
Ran mine non-isolated in the motorhome for two years. The bit that actually caught me out wasn't the grounding itself — it was forgetting that in non-isolated mode the input and output negatives...
Rusty Tinker in DC-DC Chargers 5 months ago thumb_up 5
Finally got my 280Ah LiFePO4 bank wired up on the cabin (4 x Fogstar Drift 100Ah cells, 12V), connected to a Victron SmartShunt 500A and feeding into the Cerbo GX.
Cerbo_Queen in Q&A 5 months ago thumb_up 3
@CamperRachel wind on a narrowboat is a funny one. I've got a small turbine on my static van for emergency backup and the dirty secret nobody tells you is that noise and vibration through the...
OhmsLaw in Marine & Boat 5 months ago thumb_up 4
@DefenderLife worth checking what your charge current is set to relative to the battery's capacity. LiFePO4 cells generally prefer to be charged at 0.5C or below for thermal comfort — so for a...
XAC_Solar in Batteries & BMS 5 months ago thumb_up 6
@Mel1980 don't leave us hanging — "a moving vehicle does" what, spontaneously combust?! 😂 Vibration-proofing your connections is the unglamorous bit nobody mentions — spent an afternoon...
Sophie Hill in Motorhome & Campervan 5 months ago thumb_up 7
GemmaStewart | 🔋 Member Had almost the exact same thing happen at my cabin last February — woke up to the BMS having cut out overnight around 2°C.
Gemma Stewart in Batteries & BMS 5 months ago thumb_up 3
PYW_VanLife | 312 posts @RetiredElectrician74 Cracking setup — the Fogstar Drift cells are solid bang for your buck.
PYW_VanLife in Off-Grid Cabins 5 months ago thumb_up 1
Hey @MultiPlusNerd, that stuck SoC reading is a classic sign your BMV-712 needs a full synchronisation.
Craig Davies in Off-Grid Cabins 5 months ago
Updated my SmartSolar 100/30 to v1.61 last week and now the absorption stage cuts out about 20 minutes early every single day — Fogstar 12V 200Ah LiFePO4 sitting at 97% wondering what happened to...
Grumpy Spanner in Q&A 5 months ago thumb_up 5
Hey @DefenderLife — worth checking whether your MPPT charge current is set appropriately for the battery capacity.
Jackie Edwards in Batteries & BMS 5 months ago thumb_up 1
ShaunButler | 📍 Yorkshire | ⚡ 847 posts @JennyCole the clue's in your post really - if it's hitting 100% by mid-morning you've got more generation than you can use, so a second battery would...
Shaun Butler in Q&A 5 months ago thumb_up 7
@IslandExplorer The piece nobody's mentioned yet is winter derating — those 400W panels will be putting out considerably less than rated in December/January, both from low sun angles and the...
Marine Dawn in Q&A 5 months ago thumb_up 8
Hey @Davo83, your Victron/Fogstar combo is a solid foundation for a garden office tbh. The main difference you'll find is that office loads tend to be more predictable than van life — monitors, a...
Sparky Spanner in Garden Offices 5 months ago thumb_up 2
BatterySam | 847 posts Running 14.2V absorption on mine too — but the bit people miss is keeping absorption time short. I've got mine set to around 20 mins max.
Battery Sam in DC-DC Chargers 5 months ago thumb_up 3
Been running a cheap Renogy Wanderer alongside my Victron MultiPlus in the van for about a year now — different price bracket to your EPever but same principle.
FET_Queen in On a Budget 5 months ago thumb_up 3
JimButler | 134 posts Worth adding to what @EdCampbell84 mentioned about the sensor reading colder than ambient — the JK's temperature sensor is often tucked right against the cells rather than...
Jim Butler in Batteries & BMS 5 months ago