Perfect home backup upgrade for my existing EcoFlow Delta 2 setup

I’ve owned my EcoFlow Delta 2 for almost a year and had been searching for a suitable rack-mounted expansion battery to upgrade my household backup setup for months. After comparing multiple well-known brands on the UK market, I finally settled on the WattCycle 48V 100Ah leisure battery, and I genuinely couldn’t be happier with my purchase. The unit is standard rack size, slotting effortlessly into the existing equipment cabinet in my utility room without any awkward modification or wasted floor space. Linking it up with my Delta 2 was far simpler than I anticipated; the connection recognised the battery instantly with zero complicated wiring or incompatible error codes. We’ve had several unexpected short power outages across winter here in the UK, and this battery alongside the Delta 2 reliably powers our fridge, home broadband router, essential living room lighting and even the central heating pump for hours on end. The built-in Bluetooth monitoring app is straightforward to navigate, letting me check remaining charge, input and output power data from my phone anywhere around the house. The LiFePO4 build feels robust and premium, no cheap plasticky parts, solid metal casing gives me total confidence leaving it running indoors long-term. Without a shadow of doubt, this is the ideal home expansion companion for anyone with an EcoFlow Delta 2.

Read More

Game changing addition to my domestic solar & Delta 2 storage system

As a homeowner who fitted small rooftop solar panels last spring, my original EcoFlow Delta 2 alone couldn’t store excess solar energy generated during sunny days, which pushed me to invest in this WattCycle 48V rack battery to complete my domestic off-grid storage system. From unboxing to full installation alongside my Delta 2 took me a single afternoon, even as someone with only basic DIY electrical knowledge. What impresses me most is the seamless communication between the battery and Delta 2; excess solar power automatically flows into the WattCycle unit for storage before feeding back to the portable power station. On overcast days or evenings when solar output drops, stored energy smoothly discharges to supply household essentials. It sits neatly rack-mounted out of sight in my garage utility cupboard, operating completely silently with zero overheating even after days of continuous charge and discharge cycles. Having used it consistently for over two months now, the advertised capacity matches real-world usage perfectly, no noticeable capacity attenuation at all. It’s transformed how we utilise our domestic solar setup, fantastic value for money for UK residential use.

Read More

Handles planned neighbourhood grid outages perfectly alongside EcoFlow Delta 2

Can’t speak highly enough about how well this WattCycle 48V 100Ah rack battery integrates with my EcoFlow Delta 2 for full residential energy backup at my house in Yorkshire. Local grid maintenance work often triggers planned power cuts across our neighbourhood several times annually, which used to leave our home without refrigeration or internet for hours. Since pairing the two units together, none of our core home living essentials get affected during scheduled or unplanned outages. The rack mount construction is precisely sized for standard domestic server cabinets available across UK retailers, so I reused my existing spare rack to house the battery with zero modification costs. Operation is whisper-quiet, no vibrating hum even under full load discharging to power multiple home devices at once. I check battery statistics weekly via the dedicated Bluetooth app, all parameters stay within normal operating ranges consistently, a brilliant reliable upgrade for all Delta 2 owners focusing on home storage.

Read More

Single 314Ah replaces four bulky lead-acid for my large campervan conversion

Ditched four old lead cells on my camper conversion 4 months back. Blown away how this compact mini unit slots straight into the original battery bay and cuts loads of vehicle weight. Spent three days wild camping up in the Lake District off-grid, running compressor fridge and small inverter microwave nonstop with zero voltage drop. Bluetooth lets me check cell levels from my bunk on chilly autumn nights, absolutely chuffed with this upgrade.

Read More

Real-world testing confirms full 314Ah capacity on remote Scottish camping

I’m a regular Scottish camper and was sceptical such a small casing could hit rated capacity, but my 400W roof solar proved it’s spot on. Five days boondocking in the Highlands with non-stop grey overcast weather kept all cabin electrics ticking over, low temp cut-off stops performance drop on frosty overnight lows.

Read More

Bluetooth app removes messy manual battery checks in rainy UK weather

No more trekking outside in pouring rain to test voltage like my old lead setup. Connect my phone anywhere inside the van to read power, temperature and cell balance. Support sorted a minor app pairing glitch same working day via email, dead handy for hobby campers with no electrician know-how.

Read More

Small Size, Big Performance

I was surprised by how compact this battery is. Despite the small size, it easily powers my fridge, lights and water pump throughout the weekend. Very pleased with the purchase.

Read More

Worth Every Penny

After months of research, I decided to give this battery a try. Installation was straightforward and it's performed flawlessly ever since. Great value compared to other lithium options available in the UK.

Read More

Excellent Battery for Touring

Used this battery for several caravan trips around Scotland and couldn't be happier. Holds charge well and the Bluetooth monitoring is genuinely useful.

Read More