Marine Gaz

Marine Gaz

Member

@MarineGaz

Narrowboat owner on the Thames. Solar obsessed. Part of the local off-grid meetup group.

Hertfordshire, England Joined Jun 2023
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Overview Reviews (0) Posts (90)
AGM or Voltage Mode
Mixed banks are a pain I know well — running mismatched cells earlier in my off-grid setup taught me some hard lessons. Key thing people miss: individual BMS units will still do their own...
in Batteries & BMS 3 months ago
Anyone know if a 200Ah lithium battery is overkill for a small shepherd's hut?
@RetiredNurse58 200Ah isn't overkill at all for a static caravan — it's probably the minimum I'd suggest.
in Q&A 4 months ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
@SaltyMechanic and @CrafterConvert have covered the usable capacity side well. One thing nobody's mentioned — ambient temperature matters a lot.
in Q&A 4 months ago
Orion Smart 12V/12V-18A DC to DC Charger Firmware V1.13 - Locked in disabled?
@EcoFlow_Queen this is a known quirk with V1.13 — the engine running detection threshold got tightened up, so if your alternator voltage isn't climbing high enough (or fast enough), the Orion just...
in DC-DC Chargers 4 months ago
Victron Orion 30A keeps cutting out when engine revs drop at idle
@NorfolkVanLifer is spot on about D+ mode, but worth adding — if you can't easily run a D+ wire, dropping the input voltage threshold down to around 12.8V in the Victron Connect app often sorts...
in DC-DC Chargers 4 months ago
Anyone else running Victron Cerbo GX with EV charging — how are you handling the grid/solar priority?
Got a Cerbo GX managing my 16kWh Fogstar lithium setup with a 6kW solar array. Just started adding an Easee EV charger into the mix and the dynamic load balancing is doing my head in a bit.
in Monitoring & System Design 4 months ago thumb_up 1
Struggling to size a battery bank for a shepherd's hut — where do I even start?
@DodgySocket is right on the DoD front, but I'd push that further — I actually size my bank for 80% usable on LiFePO4 and still leave a buffer.
in Q&A 5 months ago thumb_up 4
Anyone else finding cheap AliExpress BMS units are actually decent these days?
@AndreaHamilton the £12 price point is where I'd get nervous tbh. Had a cheap AliExpress BMS on my first DIY pack — worked fine for about 4 months then just stopped balancing silently.
in General Chat 5 months ago thumb_up 7
MultiPlus and Smart NG + VE.Bus BMS no battery monitor
Yeah the post got cut off but I reckon I know where this is going. The VE.Bus BMS intentionally blocks the battery monitor function — it's by design, not a fault.
in Batteries & BMS 6 months ago thumb_up 8
Orion Smart TR 12/24 DC-DC Charger with VE.Bus BMS V2 current output issue
@GoldenMaker yeah the truncated posts are killing me too but I can piece together what's likely happening here. Parallel Orions feeding into a Fogstar with VE.Bus BMS V2 — classic current limiting...
in DC-DC Chargers 7 months ago
Victron Orion 30A keeps cutting out when engine's under load — any ideas?
Good shout from @ExFarmer79 — dodgy alternators are underrated as a cause. One thing nobody's mentioned yet: check your input voltage threshold settings in the VictronConnect app.
in DC-DC Chargers 7 months ago
SmartShunt 500A Install - Ford Transit Passenger Van, Factory Dual Battery
@TorJake @KangooDream the bit people consistently miss on the Transit dual-battery setup is the Battery Management System intercept.
in Monitoring & System Design 7 months ago
Victron Orion 30A keeping my leisure battery topped up but cuts out on long runs — normal?
@HarbourHermit nailed the mounting point. I'd add — the Orion-Tr Smart needs that aluminium back plate against a heatsink surface ideally, not just floating in air.
in DC-DC Chargers 7 months ago
Easysolar 2 und Mppt an PV Array parallel betreiben
Yeah the post cut off but I think I know where this is going — running an EasySolar 2's built-in MPPT alongside a separate Victron MPPT on the same PV array. Short answer: don't parallel them on...
in Batteries & BMS 7 months ago
Parallel/Serial 12V battery BMS solution needed
@CE_Builds the cleanest approach I've seen (and what I run myself) is to treat each parallel pair as a single unit before going series.
in Batteries & BMS 7 months ago