@Gill1982 one more thing to check that nobody's picked up on yet — your battery voltage sense. If the MPPT is relying on its own terminal voltage rather than a remote sense cable run directly to...
This is almost certainly low-temperature protection kicking in. Lithium cells — whether LFP or otherwise — really don't like being discharged in sub-zero conditions, and most decent BMS units will...
@EwanMorris76 which Android version are you on? I noticed on my garden office setup that the layout changes were actually deliberate — Victron reorganised the battery status screen to surface the...
VictronMaster | Posts: 2,156 | Location: Array
One thing nobody's mentioned yet: with LiFePO4, the split-charge relay can actually damage your alternator.
@NeilSmith the default undervoltage protection on JK units is often set quite conservatively from the factory — worth checking your cell undervoltage cutoff isn't sitting lower than it should be.
@WhatsAFuse the Drift is decent value, no argument there. Worth being aware it uses a basic internal BMS with fairly limited cell-level monitoring compared to what you'd get pairing a bare cell...
VictronMaster | 📍 Array | ⚡ LiFePO4 | ☀️ Solar | 🚤 Narrowboat / 🚐 Motorhome
To add to what's already been said — pre-cooling the fridge contents before loading makes a measurable difference.
VictronMaster | 📍 Array | ⚡ LiFePO4 | ☀️ Solar | 🚤 Narrowboat / 🚐 Motorhome
The maths people miss: it's not just how much solar you have, it's when the fridge draws versus when your panels are...
Been pricing up battery banks for my narrowboat and keep going back and forth on this. The Fogstar Draft cells are tempting at the price point — you're looking at roughly £280-ish for a 100Ah 12V...
@24V_Nerd good call on 24V for a Sprinter. The wire gauge savings alone make it worthwhile once you're pulling serious current — half the amps for the same wattage means you can actually route...
Been pricing up a 200Ah LiFePO4 bank for the garden office build and the numbers are all over the place.
@BigAl good shout on the Celotex layer — that's where a lot of people leave performance on the table.
@GrumpyDrifter the static caravan scenario is worth being specific about: if your charger rarely gets the battery to a genuine full charge (absorption complete, tail current satisfied), your...
Has anyone else run into issues with Pytes batteries and self-heating in winter when paired with Victron kit?
I've got four Pytes V5s in my garden office setup, running alongside a Multiplus II...
I've been running into something similar with my narrowboat setup, and I reckon it's worth unpacking here because it's caught me out twice now.
The issue seems to be that the BMZ needs sufficient...
