Anker SOLIX Solarbank 4 E5000 Pro
Anker's flagship plug-in balcony battery: 5kWh usable, a huge 5,000W of PV input across four MPPTs and an 800W grid-tied output, expandable to 30kWh with add-on packs.
Not legal to self-install as plug-in solar
This system stores energy, which the UK plug-in solar rules (SI 2026/848) exclude. It can't be used under the plug-in route, so in Great Britain it needs a hardwired installation by a qualified electrician.
Checked against the ENA Type Test Register on 28 September 2026. The rules, explained
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Our verdict
The most complete balcony battery Anker sells: enough PV input to run seriously oversized panels without clipping losses, off-peak grid charging, and modular expansion to 30kWh. Anker's GB filing for this system was assessed non-compliant for the plug-in route, so it needs a hardwired installation by a qualified electrician. (GBP price representative until Anker publishes the UK RRP.)
Good
- 5,000W PV input, headroom for big arrays
- Expandable to 30kWh
- Off-peak tariff charging
Watch out
- Not legal to self-install in GB; electrician install only
- Premium price
- Overkill for a single-panel setup
Specifications
| Usable capacity | 5 kWh |
|---|---|
| Max expandable | 30 kWh |
| Max AC output | 800 W |
| Max PV input | 5000 W |
| Cycle life | 6000 |
| Weatherproofing | IP66 |
| App control | Yes |
| AC-coupled (works without panels) | Yes |