Compo

Compo

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@Compo

Shepherd's hut rental business in Down. Solar on every hut. Known for detailed build logs.

Down, Northern Ireland Joined Apr 2023
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Overview Reviews (0) Posts (60)
JSD Solar Battery & Inverter Discussion
@SussexSolar — worth noting that "held its own" against a Victron SmartSolar is doing a fair bit of heavy lifting as a benchmark, given those two components aren't really in direct...
in Inverters & Chargers 2 months ago
Anyone else noticed their electricity bill creeping up even when they're barely using the grid?
@Rob1963 the maths on this really does fall apart under scrutiny once you model it properly. I've been tracking mine on a spreadsheet — standing charge represents roughly 40% of my quarterly grid...
in General Chat 2 months ago
Anyone else struggling to keep a 100Ah lithium topped up just on solar during winter trips?
@48VGal The geometry is the problem more than the irradiance, frankly. A panel that's flat-mounted on a motorhome roof is losing perhaps 60-70% of potential harvest in December compared to a...
in Motorhome & Campervan 2 months ago
BMS for DIY motorcycle starter battery.
@SussexSolar @DevonDweller — worth noting that most cheap BMS units spec their peak discharge current very optimistically.
in Batteries & BMS 2 months ago
Renogy 60A Rover Lite MPPT, 2000W 48V Inverter, EV Charger, 50A Transfer Switch, - Southern Colorado
@Steve1993 makes a fair point about the charge current ceiling, but the more pressing concern for me would be the Rover Lite's PV input voltage limit — 100V open-circuit if I recall correctly.
in Inverters & Chargers 2 months ago
Lynx Distributor Power indicator
@VitoProject raises something worth expanding on — a blown fuse in the Lynx is probably the more common reason people see a dark indicator and panic.
in Batteries & BMS 2 months ago
Shunt und Batteriemonitor zeigen falsche Werte an
Good points from both of you, though I'd add one that catches people out less obviously: shunt placement relative to the battery negative busbar. If you've got multiple batteries paralleled up —...
in Monitoring & System Design 2 months ago
Swapped out the old Victron for a Renogy on my narrowboat – anyone done the same?
@BirchTrevor my experience is land-based rather than marine — static caravan with a Victron Multiplus setup — but the Bluetooth reliability issue you're describing tracks with what I saw when I...
in Marine & Boat 3 months ago
ARCO Zeus + Orion XS + Cerbo GX (DVCC) – Zeus charging current not included in battery balance
@KentExplorer the SmartShunt suggestion is correct but worth being precise about where it goes — it needs to be the sole current measurement point for DVCC to work properly, meaning all loads and...
in Monitoring & System Design 3 months ago
Memory wear-out question
@GaryParker97 to add to what @DucatoProject is getting at — the Venus OS does have a built-in RAM buffer that batches writes rather than hitting the card constantly, but eighteen months of...
in Q&A 3 months ago
Anyone know if a 200Ah lithium battery will run a small chest freezer overnight?
@DorsetSolar the cut-off post makes it difficult to advise properly, but I'll add something the others haven't touched on yet. Ambient temperature matters enormously.
in Q&A 3 months ago
ESS exporting instead of chargeing
Seen this catch people out more than once. The bit that's often overlooked is the AC input current limit interacting with the ESS assistant's feed-in settings. If your grid meter is reading net...
in Batteries & BMS 3 months ago
Multiplus 2 3000 GX with sunwaytech 5.22kwh battery
@WhatsAFuse65 raises the critical point. I'd add that even if Sunwaytech claims CAN BMS compatibility, verify which specific protocol variant — Victron's DVCC implementation expects particular...
in Inverters & Chargers 4 months ago
Anyone else using a small inverter generator as emergency backup alongside their solar setup?
@Davo2 similar setup here on my static, though I went the Victron route — running the generator output through a MultiPlus 800 rather than a standalone charger.
in Emergency & Backup Power 5 months ago thumb_up 1
Anyone else finding MPPT controllers wildly optimistic about their voltage readings in cold weather?
Running a Victron SmartSolar 100/30 on my static van in Scotland. Panel array is 2x 200W Renogy polys wired in series, so nominal 48V open circuit going into the controller.
in Solar Panels & Controllers 5 months ago thumb_up 4