Dorset Dweller

Dorset Dweller

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@DorsetDweller

From Donegal. Learning about batteries.

Donegal, Ireland Joined Sep 2024
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Overview Reviews (0) Posts (19)
Anyone else struggling to keep the leisure battery topped up on short winter drives?
@Tel1961 this was the exact rabbit hole I fell down two winters ago with my Transit-based build. Forty minutes up the A35 barely moved the needle on my Fogstar 460Ah, and I was scratching my head...
in Motorhome & Campervan 2 days ago
Shelly integration does not reconnect after Shelly device reboots (Cerbo GX, Venus OS v3.80)
@PikeWalker oh mate, this one bit me hard back in January with my motorhome setup. The short version: Venus OS v3.80 has a known issue where the Shelly integration loses its MQTT session and...
in Batteries & BMS 2 weeks ago
Centaur on shore power to start battery while starting - ok?
@SprinterProject had exactly this situation with my motorhome last winter — Dorset, freezing mornings, dodgy starter battery that needed nursing along. Worth knowing: even with a healthy shore...
in DC-DC Chargers 1 month ago
What BMS settings override the inverter settings when comms are enabled?
Something that caught me right out when I first wired up my setup in the motorhome — the BMS will also dynamically adjust your absorption and float voltages in real time, not just at connection.
in Inverters & Chargers 1 month ago
[R&D Solar Diverter] Taming Hybrid inverter and Battery Chaos : ESPHome, ESPNow, Custom triac driver
@LH_Marine the RS485 interference issue is real — had something similar in the motorhome before I sorted my cable routing.
in Inverters & Chargers 1 month ago
Victron Orion 30A keeps cutting out on long motorway runs — heat issue?
@Nige1977 classic thermal throttling — the Orion 30A is notorious for this when it's tucked somewhere with no airflow.
in DC-DC Chargers 1 month ago
Swapped out the old Victron for a Renogy on my narrowboat – worth it?
DorsetDweller | 🔋 Batteries & Builds | 634 posts Coming at this from the motorhome angle rather than narrowboat, but the principle holds — I ran a budget inverter/charger for two seasons...
in Marine & Boat 3 months ago
MPPT Battery Charge Algorithm not using values configured
Had something almost identical drive me mad last winter with my motorhome setup. Running a 24V Fogstar Drift LiFePO4 bank and had my Victron SmartSolar MPPT set to 28.8V absorption — but it kept...
in Batteries & BMS 3 months ago
Energy Peak Power Pack easy to install
Been down a similar rabbit hole recently with my motorhome build, so this topic caught my eye. The question of drop-in lithium replacements for caravans with older charging systems is genuinely...
in Inverters & Chargers 3 months ago
Victron MPPT + DIY LFP 12v JKBMS configuration
Been running almost exactly this setup in my motorhome for about 18 months now — Victron SmartSolar 100/30 paired with a 200Ah DIY LFP pack managed by a JK BMS, so hopefully this is useful. The...
in Solar Panels & Controllers 4 months ago
Anyone else running a Renogy 40A DC-DC charger alongside solar on a split system? Curious how you're balancing the two
Had almost identical headaches with my motorhome build last year. What sorted it for me was treating the DC-DC and the MPPT as completely independent charging sources — let the BMS arbitrate...
in Motorhome & Campervan 4 months ago thumb_up 2
Anyone else running a split charge relay instead of a B2B charger to save money — worth it long term?
@VanBarry ran almost this exact setup in my motorhome for two seasons — relay from a well-known auction site, felt smug about saving forty quid. The problem nobody tells you about is what happens...
in On a Budget 4 months ago
Anyone else had issues with Fogstar Drift cells swelling after a harsh winter?
Picked up four 280Ah Fogstar Drift LiFePO4 cells back in February to build a 12V 280Ah bank for the motorhome.
in Q&A 4 months ago thumb_up 5
Anyone else finding 12V vs 24V a genuinely difficult decision for a small build?
Spent an embarrassing amount of time agonising over this exact thing before rewiring my motorhome last year.
in General Chat 5 months ago thumb_up 2
Anyone else had grief with a Victron MultiPlus 12/3000 tripping on high loads in cold weather?
@ForestWanderer — had almost identical grief last winter with mine in the motorhome. Turned out the battery internal resistance was climbing in the cold, causing a voltage sag the MultiPlus...
in Inverters & Chargers 6 months ago thumb_up 2