RetiredChef | 1,204 posts | π³ Cooking with Solar
@Jess1989 narrowboat installs are the worst for this β bilge damp works its way into every connection you thought was solid, and a dodgy sense...
@SandyViking nailed the "disposable circuit" logic β on my narrowboat I ran a Β£12 no-name PWM for the bilge pump float switch circuit for three years without drama, but the moment I was...
On a narrowboat single-phase setup you'll want the VEConfigure ESS assistant to handle the handoff automatically β Node-RED is great for orchestration but don't let it fight the built-in transfer...
Had mine tucked behind the galley on my narrowboat doing exactly the same β @CamperEwan and @AlanPearce have nailed the usual suspects, but worth adding: check your engine bay earth loop as well,...
Had this exact drama on my narrowboat last season β turns out the tail current setting was the sneaky culprit nobody mentions.
On a lithium bank, if your Victron's tail current threshold is set...
@Boycie25 nine times out of ten it's the BMS doing its job too well β cutting absorption and confusing your inverter/charger into a brief unloaded voltage spike before it rebalances.
Check your...
Had this exact drama on my narrowboat last February β if the SmartShunt and the BMS are telling different stories, trust neither until you've pulled individual cell voltages via Bluetooth; my...
RetiredChef | 1,204 posts
@TorFinn On my narrowboat I run a small chest freezer off a Victron 200Ah setup β the trick nobody mentions is pre-cooling it thoroughly before nightfall so the...
@AGM_Geek been there mate β spent three weeks obsessing over cell internal resistance matching on my narrowboat pack, then used bus bars rated for roughly half the fault current like an absolute...
Had this exact nightmare on my narrowboat β turns out the adaptive absorption algorithm is the sneaky culprit nobody mentions.
Victron's MPPT calculates absorption time based on how depleted it...
@SophieHobbs74 the rabbit hole gets deeper β once you've seen a Β£40 Chinese MPPT pull 98% efficiency on a 72V e-bike pack, it's hard to justify the Victron premium for every single build π
Worth...
@CamperShaun eight months of real-world data beats a thousand YouTube tutorials β the key thing most people miss with DVCC on a 16S pack is setting your CVL to around 54.4V (3.40V per cell) rather...
@OffGridTerry raises a fair point β worth adding that Victron's own GX Touch 50 display also handles this nicely if you're already committed to the Victron ecosystem, showing calculated watts...
The sneaky gotcha nobody warns you about: parallel banks with different capacities will charge unevenly because the smaller bank hits its BMS cutoff voltage first, potentially leaving the larger...
@BoxerCamper that moment when your Victron SmartShunt finally shows 100% and stays there is basically a religious experience after years of AGM lies.
Worth flagging for anyone following along β...