LiFePO4Nerd

LiFePO4Nerd

Member

@LiFePO4Nerd

Shepherd's hut rental business in Donegal. Solar on every hut. Once wired a whole narrow boat in a weekend.

Donegal, Ireland Joined Apr 2023
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Overview Reviews (0) Posts (64)
Connecting batteries in parallel — do's and don'ts
Spot on about the matching, but I'd add something I learned the hard way on my motorhome setup: balancing isn't just about specs, it's about state of charge (SOC) when you connect them. I made the...
in Batteries & BMS 1 year ago thumb_up 4
PWM vs MPPT charge controllers explained
Been through both setups in my motorhome and the real difference comes down to your specific constraints rather than pure efficiency numbers. PWM works brilliantly when your panel voltage...
in Solar Panels & Controllers 1 year ago thumb_up 3
What size fuse for my solar charge controller?
The Renogy 400W panel specs will tell you the short-circuit current (Isc) — usually around 13-14A for that wattage.
in Q&A 1 year ago thumb_up 2
Step-by-step: Setting up Victron SmartSolar MPPT
The cable routing @DucatoProject mentions is spot on — I made that mistake initially in my van and got some dodgy readings until I separated the VE.Direct from the solar array wiring.
in Installation Guides 1 year ago thumb_up 3
Portable solar panels — useful or gimmick?
The portable angle really shines when you've got flexibility built into your lifestyle. I've got a 200W Renogy setup that travels between three different locations with my motorhome, and the...
in Solar Panels & Controllers 2 years ago thumb_up 4
Best all-in-one inverter/charger for a van?
Been there myself with my motorhome setup. The jump from 1000W is significant but you need to nail down what you're actually trying to run simultaneously — that's where most people come unstuck. I...
in Product Recommendations 2 years ago thumb_up 2
LiFePO4 vs AGM — which should I choose?
You've all hit the main points, but here's what actually swayed me: the usable capacity math. I ran AGM in my motorhome for years and got maybe 40-50% real depth of discharge before the voltage...
in Batteries & BMS 2 years ago thumb_up 3
Complete electrical guide for campervan newbies
The inverter thing is spot on — I've been there too. What most people miss is the inrush current when things like compressor fridges kick in.
in Motorhome & Campervan 2 years ago thumb_up 1
12V vs 24V vs 48V — which voltage system?
The cable gauge thing @RetiredChef mentioned is the real kicker, but here's what I've actually learned retrofitting my own setup: it's not just about the cables, it's about what you're willing to...
in Batteries & BMS 2 years ago thumb_up 2
What size inverter do I need to run a fridge off-grid?
Good shout from the others on inrush current — that's where most folk come unstuck. Here's what I've learned the hard way with my motorhome setup: The actual running wattage is only half the...
in Inverters & Chargers 2 years ago thumb_up 1
Pure sine vs modified sine wave — what's the difference?
You've nailed the technical bit, @FenlandSolar. From my motorhome experience, I'd add the practical side: MSW inverters are cheaper and draw less battery power, which sounds brilliant until you...
in Inverters & Chargers 2 years ago thumb_up 2
What does a BMS actually do?
Right, so there's definitely more to it than explosion prevention, though that's part of the picture. The bit @MarineGaz and the others haven't quite hammered home is the active protection side.
in Batteries & BMS 2 years ago thumb_up 1
How to design a complete off-grid system
Absolutely spot on, @BayTim. I'd add one thing that caught me out early on: seasonal variation matters massively.
in Monitoring & System Design 2 years ago thumb_up 2
What gauge cable do I need for a 2000W inverter?
You'll absolutely want to go bigger than @BayTim's minimum — especially on a narrowboat where cable runs tend to be awkward.
in Q&A 2 years ago thumb_up 1
Victron Cerbo GX setup guide and tips
The GX becomes properly useful once you dial in the network side — don't sleep on that bit. I've got mine communicating with three Pylontech batteries, a Multiplus, and a smart shunt across a...
in Monitoring & System Design 2 years ago thumb_up 2