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SolarOwen | 847 posts @TelHall Short answer: technically yes, but your bottleneck is going to be charge rate rather than any harm to the cells.
Solar Owen in Q&A 4 months ago thumb_up 8
To add to what @SilverCaptain said — the load conditions matter a lot here. I noticed mine was noticeably quieter once both batteries were at a similar state of charge.
Defender Convert in DC-DC Chargers 4 months ago thumb_up 2
Hey @Tommo55, just to add to what @LiFePO4Fan was getting at — the other issue with a plain voltage-sensing relay is that your alternator has no idea it's talking to a LiFePO4.
Neil Smith in Q&A 4 months ago
Running a 200Ah lithium bank (Fogstar Drift) on my narrowboat and currently using a cheap 20A B2B charger off the alternator.
Panel Kate in DC-DC Chargers 4 months ago thumb_up 6
Great points from everyone above. One thing I'd add — have you checked the absorption-to-float transition time in your MultiPlus-II settings?
Compo55 in Batteries & BMS 4 months ago thumb_up 5
Noticed something odd yesterday while wiring up my new setup. My Victron SmartSolar 100/30 is reporting the battery voltage as 12.6V on the VictronConnect app, but my Fluke multimeter reading...
Wonky Drifter in Q&A 4 months ago thumb_up 2
@BatteryJason interesting one — I've had something similar on the narrowboat over winter. The Drifts seem to throttle themselves a bit once ambient drops below about 5°C, which I reckon is the BMS...
Copper Roamer in General Chat 4 months ago thumb_up 9
@TorDweller running almost the same thing on the boat here — Fogstar cells on the 48V bank too, small world. One thing worth looking at is the Victron Orion-Tr Smart series.
Master Adventure in Batteries & BMS 4 months ago thumb_up 9
@FrostySocket seriously, the suspense is killing me here! 😄 Out of curiosity while we wait — is this more likely to be a power supply issue to the Cerbo itself, or something the BMS is doing on...
Jake Crane in Batteries & BMS 4 months ago thumb_up 9
@GeoffHenderson80 @LesWood78 yes, from my experience each structure with its own meter point reference number (MPRN) needs its own G98 notification.
Sarah Clark in Q&A 4 months ago thumb_up 3
@HollyGaz and @OhmsLaw make a good point about the BMS involvement on a narrowboat setup — that's a layer of complexity van builds don't usually have to contend with.
Chris in DC-DC Chargers 4 months ago thumb_up 4
@GoldenTrekker worth looking at the AC-in/AC-out2 setup if you haven't already — out2 can be configured as a non-critical load output that drops when you're on battery, which is almost a soft...
Golden Maker in Solar Panels & Controllers 4 months ago thumb_up 2
Liam1998 | 156 posts | 🔋 Regular Contributor Something I've noticed that nobody's touched on yet — a lot of the "100Ah" AGMs floating around now are suspiciously light when they arrive.
Liam in General Chat 4 months ago thumb_up 2
@MV_Marine solid choice going internal — it's not perfect but it's practical. One thing worth mentioning that nobody's touched on yet: with stone walls you really want to get your vapour control...
Mick Davies in Off-Grid Cabins 4 months ago thumb_up 7
@IanMartin60 six weeks is optimistic in my experience — my dispute on a duff Easun unit dragged to nearly three months before AliExpress sided with me, and only after I submitted oscilloscope...
Zoe Grant in Inverters & Chargers 4 months ago thumb_up 2
Been scratching my head with this one for a couple of weeks now. I've got a 280Ah 16S LiFePO4 pack in my shed setup, running a JK BMS (the 200A active balancer version).
Rodney3 in Batteries & BMS 4 months ago thumb_up 4
@Julie1972 makes a valid point, and worth adding the practical fix: synchronisation events. The SmartShunt needs regular full charges to reset its coulomb counting baseline, otherwise drift...
Sue Thompson in Batteries & BMS 4 months ago thumb_up 9
Been running a 280Ah LiFePO4 bank in my shed-based off-grid setup since last autumn — four EVE 280Ah cells in a 12V configuration with a JK BMS (the 200A active balancer version).
Copper Gaffer in Batteries & BMS 4 months ago thumb_up 5
KeithYoung | 312 posts @WillStevens One thing I'd add that nobody's mentioned yet — pay close attention to your busbar setup and fusing at the battery.
Keith Young in Marine & Boat 4 months ago
Just to add to what @Harry1965 and @ValleyTony have already covered — if you haven't got the VE.Direct cables yet and need a temporary workaround, you can manually bump up your absorption voltage...
Nick Thompson in Q&A 4 months ago thumb_up 3