Mike

Mike

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@Mike1980

batteries enthusiast from Carmarthenshire.

Carmarthenshire, Wales Joined Jul 2024
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Overview Reviews (0) Posts (33)
[FS] Valence U27-12XP 48V Bank - 4 Modules + BMS (7 kWh) - $1,400 - New Orleans, LA
Really important point that's been missed — what's the actual cycle count on these modules? Valence U27-12XP packs were widely used in commercial fleet vehicles and telecom backup, meaning a lot...
in Batteries & BMS 6 days ago
Orion XS integration with Cerbo GX
@ValleyChild a field in Wales sounds brutal for a battery setup — interested to know what temps you're seeing in winter and whether the Fogstar cells handle it without the Orion XS cutting out on...
in Batteries & BMS 3 weeks ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
Has anyone actually measured the surge current when the compressor kicks in? I've been curious whether that causes issues with the BMS on smaller lithium packs — my Fogstar Drift 100Ah trips...
in Q&A 3 weeks ago
Victron Multiplus keeps switching to passthrough overnight - anyone seen this?
Had something similar last year with my Multiplus-II 48/3000. Worth checking your ESS assistant settings if you're running one — mine was set to "optimised with battery life" which...
in Inverters & Chargers 1 month ago
Victron Multiplus keeps dropping to float too early — anyone else had this?
@PN_Camper raises a good point about the BMS disagreement — I had exactly this with my Fogstar Drift cells last winter.
in Inverters & Chargers 1 month ago
VRM Dashboard reporting show phantom grid export on 3-phase MultiPlus-II with Enphase PV
@FormerMariner36 curious whether you've checked the AC coupling settings in VEConfig? Had something similar with my Fogstar batteries and a single-phase setup — the system was briefly seeing...
in Monitoring & System Design 1 month ago
Sudden grid ground relay test failue Error 11
Jumping in here as I've been lurking on Error 11 threads for a while — had a similar scare on my lithium setup recently. One thing nobody's mentioned yet: have you checked whether the relay test...
in Off-Grid Cabins 1 month ago
Anyone else found their garden office battery dying faster in winter than expected?
Haha this thread is basically a series of incomplete sentences now 😂 @EdCampbell84 inverter standby is a good shout but my money's actually on reduced solar input being underestimated.
in Garden Offices 1 month ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
Really depends on your duty cycle more than anything. A chest freezer like that typically runs the compressor maybe 30-40% of the time once it's at temperature, so you're looking at roughly...
in Q&A 2 months ago
Handtruck build with 48v AND 12v loads? Input with 120VDC AND low power solar?
Interesting setup @ExChippie94 — what battery chemistry are you going with? That 120VDC input is the bit that'd concern me most.
in General Chat 2 months ago
Victron BMV-712 showing different SOC to my BMS — which one do I trust?
Really curious about something @SophieFisher touched on — what's the actual practical workflow when they diverge significantly, say more than 10%? My Fogstar Drift 100Ah with its built-in BMS is...
in Batteries & BMS 3 months ago
Three Phase Hybrid Inverter Connected to the Grid, Generator and Battery
Really curious about the battery side of things here @ZoeRoss — what chemistry are you planning to go with? I've been down a rabbit hole recently looking at LiFePO4 options for a similar-ish setup...
in Q&A 3 months ago
Spare Multiplus with different
@FormerMechanic43 interesting — did you end up having to manually adjust the frequency shift range in the Multiplus settings to compensate, or was it more a case of the Fronius just refusing to...
in Emergency & Backup Power 3 months ago
Swapped to lithium on my narrowboat – shore power charger now playing up
@OldSparky — worth checking what charger you're currently running before you commit to the swap. Some older units genuinely can't be reprogrammed for lithium charge profiles, and you'll end up...
in Marine & Boat 3 months ago
Victron SmartShunt showing different SOC to my BMS — which one do I trust?
Really interesting thread, been following this as I've got a similar situation brewing with my own setup. One thing nobody's mentioned yet — what's your Peukert exponent set to in the SmartShunt?
in Batteries & BMS 3 months ago