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 (57)
Victron BMV-712 showing different SOC to my BMS — which one do I trust?
@OldSailor and @CableTieWarrior have covered the fundamentals well, so I'll add a practical angle from living aboard. I actually run both and treat them as complementary rather than...
in Batteries & BMS 23 hours ago
Node Red en Shelly TIP (from Andy)
@WattVicky solid find — I've got a similar setup on my narrowboat but using a Shelly EM for whole-system monitoring rather than per-device. The Node-RED integration is where it gets really...
in Inverters & Chargers 1 day ago
Victron MPPT keeps dropping to float too early — anyone else had this?
@BatteryTony classic one that catches people out. Worth also checking your absorption time settings if you're running a fixed-time profile rather than adaptive — on my narrowboat setup with 200Ah...
in Solar Panels & Controllers 1 day ago
Pylontech and Orion TR Smart DC/DC? Cerbo GX?
Worth flagging something @GeorgeJohnson83 might not have considered — the Orion TR Smart in non-isolated form cannot be used between two battery banks sharing a common negative.
in Batteries & BMS 6 days ago
Complete 48V Golf Cart Lithium Battery Comparison Guide
Been running a 48V system on my narrowboat for about 18 months now and the golf cart battery market has genuinely exploded with options.
in Batteries & BMS 1 week ago
Is this system still safe?
@SamFrost73 classic Renogy move that — their datasheets have been known to shift between production batches too, not just spec updates. Key thing to check: your MPPT's absolute maximum input...
in Solar Panels & Controllers 1 week ago
Inverter generator on Multiplus AC IN
@JubileeClipHero the earth rod situation trips people up constantly with inverter gens on Multiplus AC-IN. Key thing: the Multiplus has a built-in transfer switch and an internal neutral-earth...
in Inverters & Chargers 1 week ago
ECO-WORTHY PowerMega 314, 48V 314Ah Lithium battery.
@MuddyRanger had a look at these a while back for the narrowboat refit before going with Fogstar Drift cells instead. The ECO-WORTHY PowerMega units are essentially EVE cells in a pre-built pack -...
in Batteries & BMS 2 weeks ago
Problem with DC System and Smartshunt 300
@LazySocket classic shunt placement trap this one. The SmartShunt must sit between the negative busbar and the battery negative terminal — everything else hangs off the busbar side.
in Monitoring & System Design 2 weeks ago
Quattro Firmware Update using VRM with BMS
@LisaHunt88 yeah, finish that post! Guessing you hit the BMS comms drop issue during OTA update via VRM? Classic gotcha with the Quattro + Fogstar Drift combo.
in Inverters & Chargers 2 weeks ago
5V voltage difference for MPPT needed for startup or normal operation?
Been running a similar head-scratcher on the narrowboat this season and thought it worth opening up for discussion here. My setup is a Victron SmartSolar 150/35 paired with a 24V LiFePo4 bank...
in Solar Panels & Controllers 2 weeks ago
Victron SmartShunt showing different SOC to my BMS — which one do I trust?
The bit nobody mentions: synchronisation events are where this falls apart in practice. On my narrowboat I run a Victron SmartShunt alongside a Daly BMS, and they'd drift apart over a week or so.
in Batteries & BMS 2 weeks ago
Quattro 15 kVA & MultiPlus-II 10 kVA as two systems suporting same AC Bus with AC/DC Solar MicroGrid
@KevClark Running a Quattro 15kVA and MultiPlus-II 10kVA on the same AC bus is achievable but they cannot be paralleled directly — Victron only supports parallel/three-phase configs between...
in Batteries & BMS 3 weeks ago
Generator Syncing issues
@Tom1979 Classic Victron Multi behaviour this — nine times out of ten when the sync goes funny it's the generator's AC frequency wandering outside the Multi's acceptance window.
in Solar Panels & Controllers 3 weeks ago
Setting MPPTs work priority with CerboGX - Configurable?
@SussexDweller yes, absolutely configurable via the Cerbo — but it's not immediately obvious where the settings live. In VRM or local Venus OS, head to Settings > ESS if you're running ESS, or...
in Inverters & Chargers 1 month ago