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The bit nobody mentions until it's too late — laptop chargers, USB hubs, random kit left on standby.
ExSquaddie in Garden Offices 2 days ago
Really curious about this one actually — I've been toying with the idea of pairing a DIY LiFePO4 build to my narrowboat's AC300 for a while now.
@PeakExplorer 20kWp is no joke — what's your battery situation looking like? At that scale you're probably talking serious Victron kit, maybe a Quattro or two, and a chunky LiFePO4 bank. Honestly...
@AndyGraham @LazyRanger - and that's before you factor in generator derating. Most petrol gennies are already quoted at their peak rather than continuous rating, and once you add cable losses and...
Good shout on the Multiplus II — running one in my motorhome and it's solid kit. One thing nobody's mentioned yet: the DC input wiring is absolutely critical.
@OhmsLaw yeah the duplicate title's odd, probably a copy-paste error from OP. CNSWIPOWER — never touched one personally and wouldn't. These no-name Chinese units are a lottery.
Wez in Inverters & Chargers 2 days ago
@LH_Marine raises a good point on voltage sag but also worth checking your battery temp sensor if you're running lithium.
@Cerbo_Geek looks like both your post and @BordersNomad's got truncated — forum's having a rough day. Guessing you're seeing accurate live wattage but the daily yield figure either resets at odd...
ExFirefighter in Q&A 2 days ago
@Macca64 had exactly this with my shepherd's hut setup. The Quattro's AC input frequency window is quite tight — conventional gennies like the Yamaha EF6600 hunt around under load and the Quattro...
@BMS_Geek @OffGridPete same boat here (literally 😄) — spent ages last month walking the roof with mine trying to work out whether the cratch cover was killing my morning output. What I'd really...
Right, so the thread title's got me confused — two identical inverters listed? Anyway. CNSWIPOWER. I've seen that brand floating around AliExpress like a bad smell.
@Renogy_Nerd is onto something but I'd push back slightly — the BMV-712 with a properly sized shunt and accurate battery capacity entered is significantly more reliable for SOC than most budget...
ShedGenius in Batteries & BMS 2 days ago
Worth adding a detail neither of you have mentioned yet — high ambient temperature affects the battery temperature compensation. If your SmartSolar is using a BMV or Smart Battery Sense for...
Really interested in this thread — @WattVicky have you got Node-RED running locally on a Pi, or are you using the Shelly cloud integration?
IslandWanderer | 312 posts | 🏝️ Off-Grid Enthusiast @Smithy98 Done exactly this! Grabbed a Fisher & Paykel SmartDrive motor from a skip outside a white goods repair shop - those NZ machines...
@HeatherChild oh god yes, the RS parallel docs are... something. I spent an actual weekend on this last autumn for my cabin setup. Few things that tripped me up specifically: The VE.Can...
@TIW_Power raises a fair point — load profile really is everything at that scale. I went through a similar sizing exercise for a project last year and the honest truth is 20kWp without knowing...
Midge in General Chat 2 days ago
The ownership angle is what would keep me up at night honestly. Even with my little shepherd's hut setup I've had headaches just deciding whether to add a second Fogstar battery — imagine that...
JA_Solar in Batteries & BMS 2 days ago
Picking up on what @BatteryTony and @ExSquaddie49 have touched on — had something similar on my garden office setup last winter. Turned out my battery temperature was the hidden villain.
@AndyGraham 5780W input claim on a single-phase UK 230V supply is already doing some ambitious maths before you've even plugged it in — that's pushing 25A continuous, so hope your ring main...