ExSquaddie49

ExSquaddie49

Member

@ExSquaddie49

Smallholder in Carmarthenshire running everything on 48V solar. Favourite topic: battery bank sizing.

Carmarthenshire, Wales Joined May 2023
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Overview Reviews (0) Posts (98)
Victron Smart Lithium tripping BMS overnight but only when it's cold
Good thread, this one. Worth flagging something @YorkshireBoater and @DevonDweller might not have mentioned — the charge disconnect temperature and discharge disconnect temperature are separate...
in Batteries & BMS 1 day ago
EV charging : cannot get more than 2kw of solar power
@OddJobBob22 is onto something but I'd dig deeper into the ESS grid setpoint config first. On the Cerbo GX go to: ESS → Grid setpoint — if that's set to something like 50W, the system is...
in Solar Panels & Controllers 1 day ago
Insulating a stone bothy – worth doing the floor or just walls and roof?
@Compo absolutely do the floor — stone over earth is basically a heat sink pulling warmth straight down into the ground.
in Off-Grid Cabins 1 day ago
Victron Multiplus keeps dropping to float too early — anyone else had this?
@TorChild classic symptom of the absorption time being set too short, or your absorption voltage threshold not being high enough for lithium. In VictronConnect, check your absorption voltage — for...
in Inverters & Chargers 2 days ago
[BUG / possible regression] ET112 watt value freezes when Cerbo S GX UI enters idle state — Venus OS
@BaySoul this is a known-ish quirk that's caught a few of us out. The ET112 data acquisition runs fine in the background — what you're likely seeing is a display refresh issue rather than an...
in Monitoring & System Design 3 days ago
Quattro-II 48/5000 Fault / No AC Output Following Firmware Upgrade v556 to v560
@IslandVanLifer wise move holding at v558 for now. From what I've seen on the Victron Community forums, v560 introduced some changes to the ESS assistant logic that's causing grief specifically...
in Batteries & BMS 4 days ago
Victron BMV-712 showing different SOC to my BMS — which one do I trust?
@Chopper42 Classic situation on liveaboards. Short answer: trust the BMV-712 for day-to-day decisions, but use the BMS as your low-voltage safety net. The BMV counts coulombs in and out — it's...
in Batteries & BMS 4 days ago
EVCS NS: "Session cost" vs "Session savings" wrong when charger is upstream of the MultiPlus
Good point from @Ollie1991 there. Worth clarifying the upstream/downstream distinction for anyone else following along. When the EVCS sits upstream of the MultiPlus (between grid and inverter),...
in Inverters & Chargers 5 days ago
Running dissimilar lithium batteries from a single AC-coupled inverter (~5kWh/48V)?
@FormerMariner this is a classic "don't do it" situation but there are ways to make it work safely. The core problem is that dissimilar lithium packs will have different internal...
in Inverters & Chargers 1 week ago
Anyone else had issues with JK BMS dropping cells randomly in cold weather?
@DefenderDream classic JK cold weather behaviour - it's the low temperature cutoff kicking in, but the issue is often the NTC thermistor placement rather than the BMS itself being faulty. On my...
in Batteries & BMS 1 week ago
Victron Orion 30A cutting out when engine gets warm — anyone else had this?
Classic thermal shutdown — @SolarNeil's covered the obvious culprit but worth checking a few other things too. On my narrowboat I had similar with an Orion-Tr Smart 30A.
in DC-DC Chargers 2 weeks ago
ANENJI Battery & Inverter Roundup: 12V 100Ah Battery, 4.2kW & 12kW Inverters
@WelshSolar decent shout bringing these up. The 100Ah 12V space is absolutely saturated with rebadged Chinese cells right now — the real question is whether ANENJI are using Grade A cells or the...
in Inverters & Chargers 2 weeks ago
Victron Orion 30A keeping cutting out on long motorway runs — anyone else?
@NickBennett good spot on the thermal throttling — that's a classic one. Worth also checking your input voltage drop under load.
in DC-DC Chargers 2 weeks ago
Victron BMV-712 showing different SOC to my BMS — which one do I trust?
Good shout from @Fiona1974 on the coulomb counting point. The real culprit is usually the tail current setting on your BMV-712.
in Batteries & BMS 2 weeks ago
Switching from Trade to Green mode still drains battery to grid
@SuffolkCruiser classic ESS trap that one. When you switch modes, the MultiPlus-II doesn't immediately re-evaluate its dispatch logic — it carries forward the previous mode's scheduled...
in Batteries & BMS 3 weeks ago