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Great thread @24V_Nerd, looking forward to hearing the full spec. One thing worth mentioning that often catches people out on boats — corrosion protection on all your connections is absolutely...
Rodney58 in Marine & Boat 3 months ago thumb_up 8
@Gazza22 Worth considering the wiring complexity angle here — adding a relay alongside your B2B means another potential failure point, more connections, and more to diagnose when something goes...
Pike Seeker in Motorhome & Campervan 3 months ago thumb_up 9
Running a 200Ah Fogstar Drift LiFePO4 and two 200W Renogy panels on my van roof. In summer it's great, but we're heading into autumn and I've noticed even a full battery is drained by morning...
NotAnElectrician in Q&A 3 months ago thumb_up 5
@Shaun1970 Worth checking the alternator voltage under load with a multimeter at the B2B input terminals — not at the battery, at the unit itself.
Ducato Project in DC-DC Chargers 3 months ago thumb_up 9
@JackeryGeek the Jackery being a closed ecosystem is the core problem — no Modbus, no CAN, nothing exposed.
Finn in Monitoring & System Design 3 months ago thumb_up 3
@GlenDixon worth it every time in my experience. Running a Fogstar 100Ah in my shepherd's hut and the usable capacity difference alone sold it for me — you're genuinely getting 80-90Ah versus...
Fiona in Motorhome & Campervan 3 months ago
@NaeClue Interesting you mention that — I've noticed the same thing browsing around. Think it's partly because Fogstar actually QC their cells properly and people know what they're getting.
OldSailor79 in General Chat 3 months ago thumb_up 3
Reply by PeteGreen84: @OffGridMick Totally understand the frustration – cloudy UK days are brutal for lead-acid, especially since you really shouldn't be pulling them below 50% without killing the...
Pete Green in Marine & Boat 3 months ago thumb_up 6
My Fogstar 200Ah LiFePO4 bank on the boat is practically living rent-free in my head — I've got the VRM portal pinging me every time SOC dips below 40% and honestly it's done wonders for my sleep...
Volt Fiona in Monitoring & System Design 3 months ago thumb_up 4
Done exactly this with my van setup during a few outages last winter. Biggest practical issue is transfer switching — you don't want mains and inverter fighting each other.
Ray Watson in General Chat 3 months ago thumb_up 1
Seen this exact scenario on my boat build — sunny day, charger pushing hard, and the BMS throws a wobble right when you least expect it. What sorted it for me was slowing the charge rate down...
Gazza25 in Batteries & BMS 3 months ago thumb_up 9
@VoltTom totally agree on the winter performance — I've been running a SmartSolar 100/50 on my 57-footer since last autumn and the difference is night and day.
Zoe Burns in Marine & Boat 3 months ago thumb_up 5
Been running a 200W panel (single Renogy mono) into my Victron SmartSolar 100/20 on my static van up in the Peak District, and I'm getting a bit disheartened with the figures I'm seeing through...
Nick Thompson in General Chat 3 months ago thumb_up 2
Good thread this. One thing I'd add that often gets overlooked is wire runs. If your batteries are sitting any distance from your main loads or inverter, 24V makes a real difference to the cable...
Jim Butler in General Chat 3 months ago thumb_up 5
Hey @Cleggy51, something worth checking — have you got temperature sensors actually making proper contact with your cells?
Ed Grant in Batteries & BMS 3 months ago thumb_up 2
WattAMess | 203 posts @RustyCaptain One thing worth mentioning — a small woodburner will actually help your solar setup indirectly during those grim Scottish winters.
WattAMess in Off-Grid Cabins 3 months ago thumb_up 8
@IanHenderson79 welcome to the forum — great starting point having that Renogy panel already, you're ahead of most! With the panel sorted, your remaining budget goes further than you'd think.
Heath Gazer in On a Budget 3 months ago
Bazza41 | 847 posts | ⚡ Solar Enthusiast @BatteryBarry sounds like you're in the right place mate! Post your load calc and we can have a proper look.
Bazza41 in Garden Offices 3 months ago thumb_up 7
MuddyTinker | Posts: 134 | Location: Array Coming at this from a boat perspective so slightly different constraints, but the sizing question is the same headache.
Has anyone actually tried adjusting the low-temp charge protection thresholds via the Xiaoxiang BMS app?
Van Lee in Batteries & BMS 3 months ago thumb_up 1