ECO-WORTHY 48V 100Ah LiFePO4 Lithium Battery, 5.12kWh Capacity, (VER3)

Has anyone actually got hands-on time with this one? I've been eyeing it up for my garden office build and the price point is genuinely tempting compared to what Fogstar or Pylontech are asking right now.

Few things I can't work out from the spec sheet alone:

• What's the actual BMS communication like? Does it talk to Victron kit properly via CAN bus or are you stuck with dumb monitoring only?
• Cycle life claims — ECO-WORTHY quote 4000+ cycles but I've seen that number thrown around loosely before. Anyone pushed this through a proper discharge test?
• Physical build quality — the VER3 branding suggests they've revised it, but from what? What was wrong with VER1 and VER2?

Running a Victron Multiplus II in my van setup and I'd want something that plays nicely with it rather than needing endless faffing with DVCC settings.

The 5.12kWh capacity is spot on for what the office needs — running a couple of monitors, lighting, and a small fan heater occasionally. But I'm not spending £600-700 on something that's going to sulk after 18 months.

Anyone gone down this route? Particularly interested if you've got it wired into a Victron system. What's the real-world integration experience been like, not just the out-of-the-box impressions?

@GoldenMechanic had one of these for about 8 months now in my shed setup. Build quality is decent for the price — terminals are solid and the BMS hasn't thrown any tantrums yet.

Main gripe is the comms — no CAN bus, so my Victron Cerbo GX just sees it as a dumb battery. Not a dealbreaker but worth knowing if you want proper integration. State of charge readings are a bit rough because of it.

For a garden office that's not running anything critical, honestly it's fine. If you're planning Victron kit, just budget for a SmartShunt to get halfway decent monitoring.

Wouldn't stack multiples of these long-term — I'd probably jump to Pylontech or Fogstar Drift if expanding. But as a standalone budget unit, it does the job.

@GoldenMechanic interesting timing on this thread — I've been weighing up something similar for my van build but obviously the weight and footprint considerations are different for me.

One thing I'd want to know before pulling the trigger on any of these budget 48V units: what's the actual BMS communication like? Does it play nicely with a Victron system via CAN bus or are you stuck with basic on/off control? For a garden office you'd presumably want proper DVCC integration so the Multiplus or whatever inverter you're using can actually talk to it properly.

The Pylontech premium is partly paying for that ecosystem compatibility. Curious whether @PennineSolar (before the reply got cut off!) found any comms issues or if it just behaved as a dumb battery.

@GoldenMechanic had one of these rattling around in the narrowboat bilge for a winter — BMS cut out more dramatically than my ex every time the temperature dropped below 5°C, so factor in a heat pad if you're not in a cosy garden office situation.

@GoldenMechanic worth knowing these don't communicate over CAN bus or RS485 with Victron kit — no proper SOC data in Venus OS, just voltage-based estimation. For a garden office that's probably fine, but if you're planning any future expansion toward EV charging integration (which is where my setup is heading), you'll want something with proper comms from the start.

The Fogstar Drift 48V units are pricier but the Victron integration is genuinely seamless by comparison.

That said, if it's a standalone simple system with a basic MPPT and inverter, the ECO-WORTHY might do the job well enough. Just go in eyes open about the limitations rather than discovering them six months down the line when you want to add functionality.

@NQ_Sparks that's the bit that concerns me most actually — I've got a Victron MPPT and MultiPlus setup in my tiny house and proper SOC data in VictronConnect is kind of non-negotiable for me. Without CAN/RS485 comms it's just guesswork isn't it?

@ThistleKen dramatic BMS cutouts worry me too — did it recover cleanly each time or did you have to manually intervene? Wondering if that's a cold temperature issue specifically.

The price gap vs Fogstar Drift is significant but if I'm building around Victron gear I'm thinking the integration headaches probably eat into those savings pretty quickly. Has anyone managed a decent workaround using a Victron BMV shunt instead to at least get some meaningful data?

@PaddyGibson — lived this exact nightmare in the van. No comms means your Victron is essentially flying blind, guessing SOC from voltage curves alone. LiFePO4 voltage curves are famously flat in the middle, so your MultiPlus will think it's at 60% when it's actually gasping at 5%.

The workaround I landed on was setting very conservative charge/discharge voltage limits in VictronConnect — basically giving the BMS a wide safety margin so the Victron's ignorance becomes less catastrophic. It's workable, but you're leaving usable capacity on the table.

For a garden office where you presumably want fire-and-forget reliability rather than constant babysitting, I'd genuinely stretch to a Fogstar Drift or even a second-hand Pylontech. The CAN bus integration alone transforms how the whole system behaves. Price difference pays for itself in sanity.