AI-W5.1-B
The AI-W5.1-B is a low-voltage battery for residential and small commercial storage, built to pair with a low-voltage hybrid inverter. It comes as one model, 5.12 kWh.
We quote it on its own or together with a Deye hybrid inverter and the accessories the system needs. Availability, lead time and delivery to your site are confirmed in the written quotation.
No prices online: every order is quoted in writing.
- Manufacturer's category
- ESS Battery
- Rating
- 5.12 kWh
- Chemistry
- LiFePO4
- Nominal voltage
- 51.2 V
- Models on this page
- 1
- Manufacturer's market list
- EU, AU
Models
| Model | Rating |
|---|---|
| AI-W5.1-B | 5.12 kWh |
Technical specifications
Values as published by the manufacturer, one column per model where the manufacturer's table has them.
| Model | AI-W5.1-B |
|---|---|
| Battery Chemistry | LiFePO4 |
| Capacity | 100 Ah |
| Nominal Voltage | 51.2 V |
| Operating Voltage | 44.8 V~57.6 V |
| Nominal Energy | 5.12 kWh |
| Weight Approximate | 74.5 kg |
| Dimension (W×H×D) | 720×255×569 mm |
| Certification | UN38.3, IEC62619, CE, UK, VDE2510-50, CEI0-21,CE-LVD, CEC, FCC, UL1973, UL9540A |
|---|
Documents
- Brochure (2026-03-14)Datasheet · EN · 2.6 MB · PDF ↗
- User manual (v03, 2026-03-30)Manual · EN · 2.4 MB · PDF ↗
4 EU-relevant certificates
EU declarations of conformity, EN and IEC test certificates and EU grid-code certificates, as published by the manufacturer. Certificates for markets outside the EU are not listed.
- EU declaration of conformityCertificate · 207 KB · PDF ↗
- EMC + EN IEC 61000Certificate · 257 KB · PDF ↗
- IEC 62040Certificate · 349 KB · PDF ↗
- IEC 62619Certificate · 183 KB · PDF ↗
All documents open from the manufacturer's own servers, so you always get the file Deye currently publishes. Most are in English.
Key features
As listed by the manufacturer.
- Eco-Friendly and Safe : Non-toxic cobalt-free LiFePO4 (LFP) battery
- High Performance and Reliability : Rated for ≥6000 cycles with 70% End-of-Life (EOL) capacity
- Wide Temperature Range: From -20°C to 55°C with natural cooling
- IP65-rated for both indoor and outdoor installations, ensuring durability in harsh conditions
- Modular Design and Scalability : Offers 5.12 kWh per module, stackable up to 30.72 kWh
- User-Friendly : Battery Management System (BMS) ensures long lifespan
- Long Warranty and Lifecycle : Backed by a 10-year warranty
A low-voltage battery needs a low-voltage hybrid inverter. Deye's hybrid inverters are on our inverter site; check the compatibility list in the inverter datasheet.
deye-inverters.com (opens in a new tab)Independent dealerSECURISTIKA SRL is an independent dealer of Deye products. This website is not affiliated with, endorsed by or operated by the manufacturer.
Specifications, features and documents as published by the manufacturer. Check the current datasheet before you order. Source page (opens in a new tab)
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