ECO-WORTHY 48V 100Ah 5120Wh LiFePO4 Server Rack Battery

Been running one of these in my setup for about six months now and honestly, for the price it's doing a decent job of not exploding — which I consider the bare minimum requirement for a battery sat next to my living room wall. 😄

The BMS comms are a bit hit-or-miss with my Victron Cerbo GX — got it talking via RS485 eventually but it took a Saturday afternoon and most of my remaining sanity. If you're expecting plug-and-play Victron integration like you'd get with a Fogstar Drift, lower your expectations significantly before unboxing.

That said, the capacity figures have been reasonably honest. I'm seeing genuine usable kWh that doesn't embarrass itself against the spec sheet, which is more than I can say for some of the other budget rack units I've looked at.

A few things worth flagging for anyone considering one:

• Cell balancing takes an age on first charge — give it time, don't panic
• The rack ears are flimsy; I'd recommend proper 19" rack mounting rather than trusting the included hardware
• Low temperature cutoff kicks in a bit aggressively if your install is in an unheated outbuilding

Main reason I picked this over a second Renogy unit was purely cost — saved about £180 and so far that's looking like a reasonable gamble rather than a catastrophic one.

Anyone else running these alongside a Victron system? Curious whether the RS485 comms actually stabilise long-term or whether I'll be rewiring something embarrassing in six months. Drop your experiences below — the more data points the better when we're all essentially beta-testing budget kit with our own money. 🔋

@TID_Electric haha "not exploding" — setting the bar high there 😄

Had a similar budget rack battery in my static caravan setup before I switched to Fogstar Drift cells. The ECO-WORTHY stuff is fine until you start pushing it hard in winter — capacity figures tend to be a bit optimistic when it's cold and the BMS gets a bit twitchy under load spikes.

Worth keeping an eye on cell balance drift around the 80-90% SOC mark. Mine started showing weird Victron MPPT comms drops that turned out to be the BMS throwing a wobble rather than anything solar-side.

If you're not already, stick a proper battery monitor on it — even a basic Victron BMV will tell you a lot more about what's actually going on than the onboard BMS display.

@TID_Electric six months with no drama is actually a decent track record for a budget rack unit tbh

Running a Fogstar Drift 48V myself in the cabin and the difference in BMS comms vs the cheaper Chinese stuff is noticeable — proper Victron integration vs basically guessing what's happening inside the pack

Main thing I'd watch with the ECO-WORTHY units is cell balancing over time. Fine when new but some people report drift creeping in after a year or so. Worth grabbing a cheap active balancer if you're not already on one

What's your charge setup — are you pulling proper BMS data or just flying blind on voltage?

Cheers @TID_Electric — six months of boring, uneventful cycling is exactly what you want from a battery, budget or otherwise!

I've got one of these sitting alongside a proper-brand unit and the cell consistency from the BMS readouts is actually surprisingly decent. Capacity seems honest too — not the usual "derate by 20% and hope for the best" situation you sometimes get with cheaper imports.

One thing worth keeping an eye on: the comms port. Mine needed a firmware nudge to talk properly to my inverter via CAN. Took an afternoon of head-scratching but sorted it eventually.

@MarineSophie makes a fair point about the Fogstar being a step up, but for folks on a tighter budget the ECO-WORTHY isn't embarrassing itself. Would I stake a critical off-grid system on it? Probably not. Supplementary storage or a starter setup? Absolutely reasonable choice.

@TID_Electric had one of these knock-offs... well, adjacent budget rack units in my motorhome for a bit before I upgraded to proper Fogstar. The comms were the weak point — BMS data via the app was sketchy at best, kept dropping connection.

Worth checking your capacity figures against what it actually delivers under load. Mine was claiming 100Ah but real-world was noticeably less, especially once temps dropped. UK winters will expose that gap pretty sharpish.

Not saying it's bad — just know what you're actually getting. If it's ticking along fine at six months that's encouraging though. Keep an eye on cell balance drift over time, that's usually where these cheaper units start showing their limitations.