Reply by @12VNerd:
@Davo51 That figure doesn't surprise me at all, sadly. The standing charge alone on most standard tariffs is absolutely scandalous now — you're paying before you've even...
Good shout from @AnneButler there. One thing nobody's mentioned yet — check your rebulk voltage setting.
@Drift_Geek three weeks is nothing mate, I agonised for longer than that 😄
One thing I'd flag that hasn't come up yet — check what BMS the second-hand Victron actually has paired with it.
@T6Solar had similar grief with a 4-cell pack last summer. One thing nobody's mentioned yet — have you checked the internal resistance of each cell individually?
Good timing on the EU22i — solid choice. One thing worth mentioning that hasn't come up yet: if you're using the generator to charge via a proper charger rather than just running loads directly,...
@OddJobBob22 your post cut off so we're all guessing a bit, but I'd say don't panic — most people do overcomplicate this initially.
The practical starting point is to list every load with its...
So I've got a Renogy DCC40S wired between my van's alternator and a 200Ah lithium leisure battery, and it's been solid for the most part.
@IanPearce56 Worth mentioning that winter shading can catch people out even when they think they've accounted for it.
@MeganFox nice one! I've got something similar running my workshop/office combo — 3x 200W panels into a Victron SmartSolar 100/30, paired with 200Ah of lithium.
I've been running a Cerbo GX as the brain of my system for about eight months now and overall it's been brilliant for keeping an eye on things.
Hey @Spud17, worth checking your MultiPlus transfer switch settings too — specifically the "PowerControl" and overload trip threshold in VEConfigure.
12VNerd | 1,243 posts
@Spud79 solid choice on the Fogstar Drift cells — cracking value for money. On the Victron question, I'd say the comms bus is what makes or breaks the decision.
