Anyone else using a cheap inverter generator as emergency backup? Sharing my experience with the Parkside 2000W from Lidl

Last winter we had three days without sun and my 400Ah lithium bank was down to about 15% before I finally caved and bought a generator. Ended up grabbing the Parkside 2000W inverter genny from Lidl for £279 — seemed like a reasonable punt given the price. Been using it on and off since then and honestly it's surprised me. Runs my 40A MPPT charger without any issues, fairly quiet at low load, and fuel consumption is pretty reasonable at around 0.6L/hr when I'm not hammering it.

My setup is 800W of panels into a Victron SmartSolar, feeding a 48V 400Ah LiFePO4 bank, with a Victron Multiplus 3000 as the inverter/charger. The Parkside feeds straight into the AC input on the Multiplus and it handles the handoff cleanly. Only gripe is it struggles a bit if the Multiplus tries to pull more than about 1,600W through it — I had to dial the input current limit down to about 8A in VictronConnect to stop it from getting grumpy.

Has anyone else gone down the budget inverter generator route for backup rather than spending £600+ on a Honda or Yamaha? Curious whether the Wen, Hyundai, or any of the other mid-range options are worth the extra over the Lidl/Aldi offerings, or if anyone's had reliability issues long-term with the cheaper ones.

My Victron Multiplus nearly had a breakdown when I first plugged a dodgy non-inverter genny into it, so the "inverter" part of that Parkside is doing a lot of heavy lifting for your battery charger's sanity.

Same situation last February on the boat — three sunless days wiped me out completely.

I've got a Honda EU22i now but nearly pulled the trigger on that Parkside. Main thing I'd add: even with inverter gennies, worth checking the total harmonic distortion spec before connecting to anything sensitive. The cheaper ones can still be a bit rough around the edges.

@MariaJones makes a fair point — my Victron Multiplus is picky too. I now always run new kit through a cheap plug-in power monitor first just to sense-check the waveform quality before it touches the inverter/charger.

Also worth knowing: Lidl kit can be hit-or-miss for spares availability. If that Parkside needs a carb rebuild in two years you might struggle. Just something to factor in for long-term backup planning.

Great thread, @LiamFox! I had a similar panic last December — watching the battery percentage creep down is genuinely stressful.

One thing worth mentioning with the Parkside (and budget inverter gennies generally) is to check the total harmonic distortion figure before connecting anything sensitive. Some of the cheaper units claim clean sine wave output but the THD can still be higher than ideal for charger-inverters.

@MariaJones raises a fair point about Victron compatibility — I'd recommend setting your Multiplus AC input current limit fairly conservatively at first, maybe 8A rather than pushing the genny hard. These smaller engines don't always love sustained heavy loads.

Also worth keeping a small fuel stabiliser like Sta-Bil in your kit if it's purely emergency backup — stale petrol after months of storage is probably the most common reason these things won't start when you actually need them! 🙂

Really relates to my situation — I've got a similar lithium setup on my narrowboat and the "watching the percentage drop" anxiety is real.

Quick question for the thread: has anyone actually tested what the Parkside's output looks like on an oscilloscope? I'm wondering whether the waveform is clean enough to not upset a Victron MultiPlus.

@MariaJones mentioned her MultiPlus struggling with a non-inverter genny — did it throw any alarms or just refuse to accept the charge current? Mine is set to weak AC mode which I believe helps, but I'm not sure that covers genuinely dirty sine waves from budget units.

Also curious whether the Parkside throttles down at low load — fuel efficiency at 20-30% load would matter a lot for just topping up batteries slowly overnight.

Really useful thread, @LiamFox — I've got the same Parkside unit actually, picked it up during one of Lidl's special buys about 18 months ago.

One thing worth mentioning that nobody's raised yet: these smaller inverter gennies can be a bit fussy about charging current. I found my MPPT charger was trying to pull more than the Parkside could comfortably deliver, causing it to hunt and surge. Solved it by manually capping the charge current in the charger settings to around 15A — runs much smoother now and the genny sounds noticeably happier.

Also worth keeping a spare spark plug and fresh fuel stabiliser in your kit if it's sitting idle most of the year. Stale petrol was the cause of my only real headache with it. Cheap and cheerful but genuinely does the job when you need it!