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So I've just finished wiring up my Transit conversion and I'm second-guessing myself a bit. I've got a 200Ah LiFePO4 (Fogstar Drift) connected to two 175W solar panels via a Victron SmartSolar...
Devon Cruiser in Q&A 2 months ago thumb_up 2
CrafterWanderer | 412 posts @Rodney58 What nobody's mentioned yet is that the Daly's coulomb counting resets poorly after partial cycles — it drifts badly without regular full charge...
Crafter Wanderer in General Chat 2 months ago thumb_up 4
Just finished wiring up my off-grid shed setup — 400Ah of lithium, 600W of panels on a Victron SmartSolar 100/30, but I've gone with a Growatt SPF 3000TL inverter rather than a Multiplus because...
Reply by Derek1967: @Foggy95 Running a similar setup here — cheap MPPT off Amazon into a 80W panel I rescued from a shed clearance.
Derek in On a Budget 2 months ago thumb_up 3
@WattRoger had the exact same bother with my 75/15 a couple of winters back. Turned out the Bluetooth module was the culprit rather than the MPPT itself — connection dropping doesn't necessarily...
FormerMechanic74 in Solar Panels & Controllers 2 months ago thumb_up 2
@Turbo the maths is a bit off there — two 12V 9Ah in series gives you 24V 9Ah, not 18Ah. Paralleling a second identical series pair then brings you back to 24V 18Ah total, but SLA you're...
OffGrid Jack in General Chat 2 months ago thumb_up 5
Been having a proper nightmare with my Victron SmartSolar 100/30 this past fortnight. Temperatures here in Yorkshire have been dropping to around -5°C overnight and I keep waking up to find the...
Watt Roger in Solar Panels & Controllers 2 months ago thumb_up 6
SarahFrost | 312 posts @NeilAllen great upgrade choice! One thing worth mentioning that catches people out – make sure you've got the correct fusing right at the battery terminals on both banks.
Sarah Frost in Marine & Boat 2 months ago thumb_up 2
@AmyChapman89 brilliant setup — the MultiPlus 2000 should handle it fine though you'll want to keep an eye on charge rate vs your battery capacity.
Gazza24 in Motorhome & Campervan 2 months ago thumb_up 7
Curious about this @48VGal — are the cells themselves running warm or is it the BMS getting toasty? On my narrowboat I've found the Drift cells behave quite differently depending on airflow around...
Dodgy Captain in Batteries & BMS 2 months ago thumb_up 5
Last spring I finally stopped talking about it and just built the thing. 200W of Renogy panels on the roof, a Victron SmartSolar 100/20 MPPT, and a second-hand 100Ah AGM I picked up off Facebook...
Ewan Murray in On a Budget 2 months ago thumb_up 4
Great setup @LutonDream! Once you've sorted the Voc calculation that @Victron_Pro and @CarlBaker are flagging, you should be in good shape.
T6 Dream in Marine & Boat 2 months ago thumb_up 9
I've got four 280Ah Fogstar Drift LiFePO4 cells wired in series (12V nominal, roughly 3.5kWh usable) in my off-grid cabin setup.
Crispy Mender in Batteries & BMS 2 months ago thumb_up 2
MultiPlusNerd | 2,891 posts | ⚡ Grumpy But Correctly Wired Slap a self-regulating heating pad on your cells and a cheap DS18B20 temp probe feeding back to the BMS — sorted it in my van last...
MultiPlusNerd in Batteries & BMS 2 months ago thumb_up 6
@Julie1972 one thing nobody's mentioned yet — have you got a GX device or a Raspberry Pi running VenusOS anywhere on the network?
Clive in Q&A 2 months ago thumb_up 6
@QuietHiker 48.1V in 3°C? Your cells are basically doing what I do on a cold Monday morning — technically functional but deeply unhappy about it 😂 LiFePO4 internal resistance genuinely does climb...
Cornish Cruiser in Batteries & BMS 2 months ago thumb_up 9
FormerMechanic | 1,204 posts @Liam1998 spent 20-odd years seeing what heat does to cheap connections — it's never good.
FormerMechanic in General Chat 2 months ago thumb_up 2
@Jim1980 your MPPT and split-charge relay are basically two mates who both fancy the same battery — the solar will always win the priority argument because it's running 24/7, but your relay only...
Daily Adventure in Motorhome & Campervan 2 months ago thumb_up 6
@Chalky the bit nobody talks about is vampire loads slowly draining you overnight. Router, NAS, phone chargers on standby — I clocked mine pulling 40W constant on my cabin setup and wondered why I...
Camper Sam in Garden Offices 2 months ago thumb_up 2
My Victron SmartSolar 100/30 is telling me I pulled 800Wh yesterday but my Fogstar battery barely moved — went from 60% to 68% on a 200Ah 12V, which is closer to 192Wh if my maths isn't completely...
Salty Mechanic in Solar Panels & Controllers 2 months ago thumb_up 1