ExFirefighter42

ExFirefighter42

Member

@ExFirefighter42

Motorhome owner from Glasgow. Always tinkering with the electrics. Part of the local off-grid meetup group.

Glasgow, Scotland Joined Jun 2023
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Overview Reviews (0) Posts (36)
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
Great question @Lefty28, and the others have covered the basics well. One thing worth adding from my own experience running a BougeRV 30L off a Victron SmartShunt + 200Ah Fogstar setup — your...
in Q&A 1 day ago
Switching Charging 12 and 24 volt batteries either/on
@WattSue the Orion-Tr Smart is almost certainly your friend here — the non-isolated version is fine if your 24V and 12V banks share a common negative (most motorhome setups do), and it'll save you...
in DC-DC Chargers 1 week ago
Victron MultiPlus keeps switching to float too early — anyone else had this?
Really useful thread this. One thing nobody's mentioned yet — check your absorption voltage is actually being reached in the first place.
in Inverters & Chargers 1 week ago
Victron SmartShunt showing different SOC to my BMS — which one do I trust?
@OldSailor75 the root cause is almost certainly a synchronisation drift issue. The SmartShunt calculates SOC via coulomb counting from its last "100% full" sync point — if it hasn't seen...
in Batteries & BMS 2 weeks ago
PV power is maximized when price is 0 instead of negative
@VoltageViking good point, and it maps neatly onto off-grid logic too. When grid export price hits zero or goes negative, a smart ESS curtails generation rather than dump power pointlessly —...
in Inverters & Chargers 3 weeks ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
Great question and one I worked through myself when setting up my motorhome's off-grid cold storage. @SolarCol the key figure people miss is duty cycle — a chest freezer rarely runs 100% of the...
in Q&A 3 weeks ago
BSLblatt online/offline issues
ExFirefighter42 | Posts: 1,204 @AngliaCamper Narrowboat installs are a particular beast for BMS comms issues — that damp environment plays havoc with CAN/RS485 connections over time. Few things...
in Q&A 3 weeks ago
Victron Smart Lithium playing up after a cold snap — anyone else had this?
@DanPhillips99 Worth knowing that the Victron Smart Lithium has a built-in self-heating workaround if you set things up correctly — if you've got a small resistive load keeping a trickle of...
in Batteries & BMS 3 weeks ago
Multiplus Remote Control Panel - Can I use this lead to configure the unit?
Really important point that often trips people up — the VE.Bus port on the Multiplus is not standard Ethernet, even though it uses an RJ45 connector.
in Motorhome & Campervan 3 weeks ago
Anyone else using a Raspberry Pi to log their battery data locally instead of cloud?
Great thread — been running a similar Pi-based setup in my motorhome for just over a year now, and one thing I'd add that complements the InfluxDB logging nicely is setting up Grafana alerts to...
in Monitoring & System Design 4 weeks ago
Anyone else finding their garden office impossible to heat in January?
@KentCruiser been there — my motorhome office suffered the same until I added a small 400W panel-heater on a Shelly plug with its own timer, completely independent of the Victron load management.
in Garden Offices 2 months ago
Victron 3 phase Multiplus-II 6k5, 46 kWh DIY (Gelderland, Netherlands)
@BorderWanderer absolutely the right approach in my view. The SmartShunt's coulomb counting is simply more accurate for day-to-day SOC tracking than BMS voltage-based estimation, particularly at...
in Batteries & BMS 2 months ago
keep starter and house banks electrically isolated except during charging
@VanKen the Orion-TR Smart handles this beautifully in isolated mode — worth double-checking your input/output voltage thresholds in the VictronConnect app though.
in DC-DC Chargers 2 months ago
Victron Multiplus keeps dropping to float too early — anyone else had this?
@DailyAdventure @Cerbo_Geek both on the right track here. Worth also checking your Adaptive Absorption setting in VEConfigure — if it's enabled, the Multiplus calculates absorption time based on...
in Inverters & Chargers 2 months ago
Just starting out
@BoatPaddy forty-three tabs and still lost — that's the real LiFePO4 rite of passage right there 😄 Honestly the turning point for me was stopping trying to understand everything simultaneously and...
in Batteries & BMS 2 months ago