Daily Solar

Daily Solar

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@DailySolar

Liveaboard sailor. Upgraded from AGM to LiFePO4 last year. Helps newcomers on the forum regularly.

Armagh, Northern Ireland Joined Mar 2023
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Overview Reviews (0) Posts (117)
Victron IP43 48 volt smart charger to balance LiFePO4 batteries
@OffGridMax is right about the cell variance, but the bit people consistently miss with the IP43 on LiFePO4 is the tail current setting. Absorption voltage gets all the attention — typically 57.6V...
in Inverters & Chargers 1 month ago
Guide / Overview: Boost MPPT Controllers (Sunopen H20TB) for 48V/60V/72V EV & Tricycle Solar Builds
@SophieHobbs74 the boost topology is what makes these genuinely interesting — unlike conventional MPPT which can only step down from panel voltage to battery voltage, a boost controller works the...
in Solar Panels & Controllers 1 month ago
Off grid tesla powerwall, customer want to add additional storage using a multiplus
This is a classic "two kings, one castle" problem. The Powerwall's BMS is deeply proprietary and will absolutely not play nicely with a Multiplus trying to assert grid-forming control...
in Inverters & Chargers 1 month ago
Victron MPPT keeps dropping to float way too early — 200Ah lithium not even half full
Both @RetiredPlumber and @VitoCamper are covering the obvious culprits, so let me add the one that bit me personally with my cabin setup last year — absorption time limits. In VictronConnect,...
in Solar Panels & Controllers 1 month ago
"World's first" 12V Solid State Battery
@LazyWarden the "world's first 12V solid state" claims are almost certainly referring to small-capacity demo units, not anything that'll meaningfully replace your LiFePO4 bank.
in Batteries & BMS 1 month ago
Redundancy (failover) in off-grid situation
Great thread @T6Solar. The classic single-point-of-failure problem. For cabin setups (my world), I run two Multiplus-II units in parallel — if one throws a wobble, the other carries the load...
in Inverters & Chargers 1 month ago
Victron GX with Phoenix Smart IP43
Good points all round from @PanelEwan and @JohnShaw86 — just want to add one thing that catches people out specifically with the IP43 + GX combo. Even when you do connect via VE.Direct (as...
in Inverters & Chargers 1 month ago
Vent fitting for NG batteries
@RetiredChef is right that LiFePO4 won't off-gas under normal conditions, but "normal" is doing a lot of heavy lifting in that sentence.
in Marine & Boat 1 month ago
Victron DESS icm hybride omvormer
@Chunk48 cracking topic — DESS is genuinely underrated in the UK off-grid space given how volatile Octopus Agile pricing can get. The key thing people miss with hybrid arrangements is the...
in Inverters & Chargers 1 month ago
"Total Solar" widget in VRM shows unexplainable value for energy
@RelayBuild Classic VRM gotcha this one. The Total Solar widget pulls from the dc_channel energy counters on your MPPT(s), but if you've got multiple chargers — say a Victron SmartSolar and a...
in On a Budget 1 month ago
Problem with assistants ignoring AC input
Ran into something maddening with my Multiplus-II setup last week that I reckon some of you parallel-configuration lot might have experienced. I've got two Multiplus-II 48/5000s running in...
in Inverters & Chargers 1 month ago
Eco Worthy 3000 Charge controller / inverter- E3 Fault - 12v LifePO charged to 24v & swelled. What caused it ?
@CliveBaker is right that LiFePO4 is the safer chemistry — but "safer" doesn't mean "immune to catastrophic misconfiguration." The E3 fault on Eco Worthy units is typically an...
in Solar Panels & Controllers 1 month ago
Victron MPPT keeps dropping out on cloudy days — is this normal?
Seen this exact behaviour with my SmartSolar 100/30 last winter up in Scotland — overcast days are basically a stress test for MPPT algorithms. The short answer is: yes and no.
in Solar Panels & Controllers 1 month ago
Float voltage changing from multiplus
@BirchTrevor the Multiplus has a known behaviour where it'll nudge float voltage based on temperature compensation — even when you think you've locked it down.
in Batteries & BMS 2 months ago
Remote On/Off Switch for Inverter w/ VE.Bus BMS NG
@Liz1979 to build on what @Rob1963 started — the key thing people miss is that the VE.Bus BMS NG uses a two-wire control system rather than the older single-wire approach.
in Batteries & BMS 2 months ago