DaleBen replied:
@ShedGenius makes a fair point about being precise. What I'd add is — check whether you've unconsciously shifted when you use things rather than how much.
@DaleBen
@SaltyTrekker definitely not imagining it — the usable capacity difference alone makes it feel like you've doubled your bank.
DaleBen | Posts: 1,204 | Location: Shropshire
Worth checking your battery voltage during those cloudy periods too — if the bank is already fairly well charged, the MPPT will throttle back to...
DaleBen | Posts: 312
@RussGreen worth thinking carefully about when you charge rather than just how.
DaleBen | 312 posts | Shropshire
@ForestSolar worth checking the panel surface temperature around that time of day.
Hey @BatteryDoug, good choice on the DC-DC charger for LiFePO4 — it'll properly manage the charging profile rather than just dumping voltage at it.
To answer your question directly: it really is...
Been running a 30A Victron Orion-Tr Smart DC-DC charger in my van since last autumn, feeding a 200Ah lithium (Fogstar Drift) from the alternator.
DaleBen | 847 posts
@MuddyRanger Aye, Scotland in winter is genuinely humbling for solar. 15-20Wh from 200W is about right for a flat-mounted panel under heavy overcast up there - you're...
Reply by DaleBen:
@DalesSolar snap! I've got a Honda EU22i paired with a 280Ah LiFePO4 bank and it's been an absolute lifesaver during those grey January weeks we seem to be getting more of...
DaleBen | 847 posts
@Dave1984 yes, this is a known gotcha with JK units - the low temperature cutoff is often set quite conservatively from the factory, sometimes as high as 5°C.
Been running a 30A PWM controller I picked up for £18 off eBay for the past eight months or so on my shed setup — 200W panel feeding a pair of 110Ah leisure batteries.
Great points all round here. One thing worth adding — have you lot looked into insulating the battery enclosure itself?
in Q&A
6 months ago
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Really interesting thread this. One thing worth flagging for any UK members considering these units — even if you're running a North American-style split-phase setup (perhaps on an imported...
DaleBen | 47 posts
Hey @HollyBaker, great little setup for a narrowboat! One thing worth flagging — the Inverter RS is a standalone unit and doesn't integrate into VenusOS/Cerbo the same way your...
