Anker SOLIX Solarbank 4 E5000 Pro 5 kWh

Cost

Price

£1,699

Price per kWh The unit on its own, divided by its capacity. No installation is included.

£338

See it at Anker SOLIX

Battery

Battery chemistry LFP packs tolerate regular charging to 100%; NMC packs are usually happier kept below it.

LFP

Usable capacity What you can actually take out, which is less than the figure on the box.

5.02 kWh

Continuous output 800 W plugged in. 2,500 W once it is hardwired by someone certified, which is also what the off-grid port will hold.

2.5 kW

Round trip efficiency Anker's own figure, the one its savings calculator runs on. Nobody has published an independent measurement yet.

90 %

Warranted cycles

10,000 cycles

Can be added to Whether you can bolt on more capacity later.

Yes

Expands to Five BP5000 modules on one tower, and Anker claims four towers can be run together for 120 kWh.

30 kWh

Solar input The most panel it will take, which is what decides the size of array it can be paired with. A battery with no inverter in it takes none.

5 kW

Smart meter The Anker Smart Meter Gen 2, thrown in with the launch price, or a Shelly 3EM or Pro 3EM if you would rather not be tied to Anker for it.

Its own or Shelly

Home Assistant The most open of the six. Anker writes and publishes the integration itself and it speaks Modbus TCP straight to the battery on port 502, polling every five seconds. No cloud, no account, no API key.

Official, local

UPS switchover Ten milliseconds onto its 2,500 W load port, which is fast enough to count as a real UPS and rare at this money.

10 ms

Depth of discharge Anker runs its LFP cells all the way down, so the 5,024 Wh on the box is the 5,024 Wh you get. Nothing else here claims that.

100 %

Corrosion rating Reported as C5 by a reviewer rather than by Anker: neither the British nor the German product page states a class, and Anker's own pages mention only an anti-corrosion base. C5-M is the older name for the same top class, and belongs to Anker's larger X1 rather than to this.

C5

Operating temperature The range the maker will stand behind. The cold end is the one that matters in a British garden, and a battery that stops charging at zero stops charging most winter mornings.

-20 °C to 55 °C

AC sockets One load port, rated 2,500 W.

1

Bypass output The off-grid port will pass 2,990 W with the grid behind it, against 2,500 W out of the battery.

2.99 kW

Charging

Weather rating IP66, a step above the IP65 on everything else here: it is rated against jets of water rather than just spray.

IP66

Warranty

10 years

Ethernet port A wired connection, which matters because these get fitted on outside walls and at the ends of drives, where the wifi is thinnest.

No

Wi-Fi 2.4 GHz only.

Yes

Bluetooth

Yes

Dimensions

Length

305 mm

Width Anker lists 460 by 305 by 355 mm without saying which is which. Recorded width, depth then height.

460 mm

Height

355 mm

Weight Empty

50 kg

Tech

App

Yes