Product-family image. Check the model number for the exact item.
Pairs with
Build the full system- Deye Hybrid InvertersWall-mounted inverter, batteries alongside
- Deye AIO Hybrid InvertersInverter sits on top of the battery stack
Your installer confirms the final system and site requirements.
Deye Batteries
Deye AI-W5.1-B 5.12 kWh Battery
AI-W5.1-B
Inverter, cables and any required PDU/base sold separately.
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Storage, explained simply.
Modular storage for a coordinated Deye stack. AI-W5.1-B is the battery module used in the Everest home Designer. The inverter, primary PDU3 and base, and any expansion PDU1 are separate products. The Designer shows them individually so you can see what makes up the system.
Storage that suits the layout
Each module adds 5.12 kWh. Four, five and six modules give 20.48, 25.60 and 30.72 kWh of nominal storage.
LFP battery chemistry
Lithium iron phosphate cells are managed by the battery’s built-in BMS, which monitors cell voltage, current and temperature.
See nominal and usable storage
The document lists 5.12 kwh at manufacturer test conditions. Usable system energy depends on operating settings and conditions.
Keep the system matched
Check the battery family, inverter compatibility, cabling and mounting equipment together before expanding or ordering.
Technical specifications
Specifications below refer to the manufacturer document shown on this page. Check the document revision and exact model before specifying a system.
| Everest SKU | AI-W5.1-B |
|---|---|
| Product type | Stackable |
| Nominal storage capacity | 5.12 kWh |
| Battery system | Low voltage |
| Cell chemistry | LiFePO₄ (LFP) |
|---|---|
| Nominal module voltage | 51.2 V |
| Capacity | 100 Ah |
| Usable energy | 5.12 kWh at manufacturer test conditions |
| Charge / discharge current | 50 A recommended / 100 A maximum (one module) |
| Communication | CAN 2.0 / RS485 |
| Mounting | Stacked; wall or floor installation |
|---|---|
| Enclosure protection | IP65 after stacking |
| Dimensions (W × H × D) | 720 × 300 × 255 mm; see document for mounting exclusions |
| Approximate module weight | 53 kg |
Product selection and installation must be checked for your site.
Spec sheets & documents
View the manufacturer’s document without leaving this page. Use the page arrows to explore, or download a copy.
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Pairs with
Build the full system- Deye Hybrid InvertersWall-mounted inverter, batteries alongside
- Deye AIO Hybrid InvertersInverter sits on top of the battery stack
Your installer confirms the final system and site requirements.
Explore related parts
Related products are for exploring the range. Compatibility and required quantities depend on your final system design.
Primary stackPDU3 + BaseAI-W5.1-PDU3-B-BASE
Expansion stackPDU1 + Expansion BaseAI-W5.1-PDU1-B-BASE
All-in-one10 kW all-in-one inverterAI-W5.1-10P1-AU-B
Questions about this product?
Tell us what you’re planning. The model number travels with your enquiry.
Is this a complete battery system?
This listing is a battery module or enclosure. The matching inverter, controller or PDU, base or rack, cables and installation requirements depend on the battery family.
Can I mix it with a different battery family?
Do not assume different Deye battery families can be mixed. Send Everest the exact models and details of the existing system for a compatibility check.
Can I order this on its own?
Yes. Add it to your cart, continue to checkout and request your order. We confirm stock and email you a secure payment link, normally within one business day. Nothing is charged until you pay the link. Delivery is free on inverter or battery orders and quoted for parts-only orders. Any installation is arranged separately.
Can Everest help with compatibility?
Yes. Include the model numbers of your existing inverter, batteries and any other system parts in your enquiry. Matching a brand or power rating alone does not confirm compatibility.