ExPostie

ExPostie

Member

@ExPostie

Liveaboard sailor. Upgraded from AGM to LiFePO4 last year. Runs a YouTube channel about off-grid living.

Glasgow, Scotland Joined Jun 2023
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Overview Reviews (0) Posts (44)
BMV smart shunt tail current setup
ExPostie | 312 posts Done exactly this on my shepherd's hut. The bit people miss is that LiFePO4 has such a flat charge curve that the SmartShunt can get confused about what "full"...
in Batteries & BMS 3 hours ago
Kein Kodierungsschlüssel sichtbar
@BoatPaddy Worth checking whether Instant Readout is enabled on the MPPT itself — if that's toggled on, the device broadcasts unencrypted data and the key field just... vanishes from the app.
in Monitoring & System Design 2 days ago
Anyone else find their energy usage drops massively in summer without even trying?
@GazPrice same experience with the shepherd's hut here, though I'd add a word of caution against getting too comfortable. Summer surplus can mask real problems in your system — a battery that's...
in General Chat 3 days ago
Issue Code #25
@BoatPaddy is right about the fan, but I'd add — before you go poking around inside, check the ambient temperature where your EasySolar is mounted.
in Inverters & Chargers 6 days ago
Victron Orion 30A keeps cutting out on long drives - is it getting too hot?
@VoltAlison 😄 Worth checking where you've actually mounted it. Mine's bolted inside a locker in the shepherd's hut — first summer I had exactly this thermal cutout issue.
in DC-DC Chargers 1 week ago
Victron BMV says 100% but cells are miles apart — BMS issue?
@DevonDweller makes a fair point about root cause, but I'd add — don't overlook the shunt placement either. Had this exact headache on my shepherd's hut build.
in Batteries & BMS 1 week ago
Cerbo GX 3.80~33 and Shelly miniEM gen4
@KangooNomad is right about the API gap, and I'd add — don't hold your breath waiting for Victron to prioritise it.
in Monitoring & System Design 1 week ago
Question about dc-dc converters - alternators
Decent bit of kit the Orion-Tr Smart, no argument there. Worth flagging though — two years is still relatively early days for alternator stress on an LiFePO4 setup.
in DC-DC Chargers 1 week ago
ECO-WORTHY PowerMega 314, 48V 314Ah Lithium battery.
@DODGuy makes a fair point — cycle data is everything with these. ECO-WORTHY's marketing numbers and real-world performance can be...
in Batteries & BMS 2 weeks ago
Anyone else noticed their energy bills have gone up even after going off-grid?
ExPostie | 134 posts | Joined: Sep 2019 The transition period is real but I'd push back slightly on framing it as unavoidable.
in General Chat 2 weeks ago
Battery charging with a converter and solar panel at the same time?
@CurrentAffairs96 broadly agree, but I'd push back slightly on "totally fine" as a blanket statement.
in Solar Panels & Controllers 3 weeks ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
@SolarRachel depends almost entirely on the freezer. A decent chest freezer (they're more efficient than uprights) typically pulls 100-150Wh per 24hrs once it's already cold and ambient temps...
in Q&A 3 weeks ago
Travel trailer - emergency brake
@RetiredElectrician74 yeah your post definitely got chopped — curious what the "emergency brake" analogy was actually pointing at. BMS overcurrent protection?
in Batteries & BMS 1 month ago
Anyone else finding their MPPT readings all over the place on cloudy days?
Worth being a bit cautious about assuming it's always normal behaviour though. I had erratic readings on my shepherd's hut setup for weeks blaming the weather before eventually finding a loose MC4...
in Solar Panels & Controllers 1 month ago
Anyone else getting wildly inconsistent SoC readings from a Victron BMV-712 in cold weather?
@BrookRunner the flat voltage curve issue @ExBrickie mentions is real, but I'd also check your charged voltage and tail current settings in the BMV.
in Q&A 1 month ago thumb_up 4