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Deye Inverter & Stackable Battery (AI-W5.1-B) Bundle
Deye AI-W5.1B Stackable Battery (5.12kWh) – Modular LiFePO₄ Energy Storage
Premium low-voltage (51.2V) LFP battery modules designed to scale from a small home system to large storage banks. Built tough for Australian conditions, with clean installs and future expandability.
Overview
The Deye AI-W5.1B is a modular LiFePO₄ (LFP) battery solution that lets you start with one module and grow capacity over time. LFP chemistry is known for safety and long service life, and the stackable format keeps the system neat and installer-friendly.
Key Benefits
- Modular scalability: add modules now or later as your loads grow
- Clean installs: stackable system reduces clutter and complexity
- Built tough: IP65 rating for indoor/outdoor installs
- Long life: ≥ 6000 cycles to 70% end-of-life capacity
- Rebate-ready: CEC approved battery model (program rules apply)
Need Help Sizing It?
Tell us what you want to run overnight (fridge, lights, air-con, pumps, etc.) or send a power bill and we’ll recommend the right number of modules/stacks and a compatible inverter setup.
Modular Expansion (Verified)
The AI-W5.1B system scales in two ways:
- Stacking (per stack): 1–6 modules per stack (5.12kWh → 30.72kWh).
- Parallel (multiple stacks): up to 6 stacks (clusters) in parallel (up to 36 modules total), subject to compatible inverter/system design.
Note: Maximum parallel capacity depends on inverter compatibility, site design, protection, cable sizing and manufacturer requirements.
What’s Included
- Deye AI-W5.1B battery modules (quantity based on selected option)
- Base + BMS included for each stack (required for stack operation)
- Required interconnects/communication components as per configuration
- Deye Combiner Box included when ordering more than 1 stack (to simplify parallel stack connection)
Technical Specifications (Per Module)
| Model | AI-W5.1-B |
| Battery Chemistry | LiFePO₄ (LFP) |
| Nominal Energy | 5.12kWh |
| Capacity | 100Ah |
| Nominal Voltage | 51.2V |
| Operating Voltage | 44.8V – 57.6V |
| Ingress Protection | IP65 |
| Operating Temperature | -20°C to 55°C (natural cooling) |
| Cycle Life | ≥ 6000 cycles (to 70% EOL) |
| Dimensions (W×H×D) | 720 × 255 × 569 mm |
| Weight (Approx.) | 74.5 kg |
| Warranty | 10 years |
CEC Approval & Battery Rebate Eligibility (Australia)
The Deye AI-W5.1B appears on the CEC approved batteries list. Battery rebate eligibility depends on the applicable program rules, compliant system design, and installation by an accredited provider.
If you’re unsure what rebate applies to your state or install type, contact us and we’ll point you in the right direction.
FAQs
How many Deye AI-W5.1B batteries can I stack?
You can stack 1 to 6 modules in a single stack for 5.12kWh to 30.72kWh.
Can I run multiple stacks in parallel?
Yes—Deye specifies up to 6 stacks (clusters) in parallel (up to 36 modules total), subject to compatible inverter/system design.
Is it suitable for outdoor installation?
Yes—this battery system is IP65 rated. Always follow manufacturer installation clearances and mounting requirements.
Does each stack require a base and BMS?
Yes—each stack uses a base and BMS (included with the stack configuration).
What if I order more than one stack?
If you order multiple stacks, a Deye Combiner Box is included to simplify combining stacks (as per your offer).
Document
Video
We aim to sell high quality products but as with life it doesn't always go to plan. As such if you receive a product which does not work as describe you need to let us know within 30 days to receive a replacement product. You must be able to describe and/or show us through a recorded video that it's not working as it should. We will then work to have the product returned and replaced or refunded. If you change your mind after purchase then we will accept returns ONLY once the item has been returned to us at your cost and in original condition.
All orders will be safely packed and shipped within 1 day. All products are shipped via Road Freight only.
All efforts are made to ensure the products safe during transport, however if you receive an item which looks like it may have been damaged during tranport you must take a photo before trying to use the product.
Shipping
All orders are shipped via Road Freight. As such there is not Express Shipping available.
RETURNS
We aim to keep our customers happy and if you are unhappy with your items due to them being damaged or not as described, simply return them for a refund. A 20% restocking fee will apply.
Top Quality Goods
Our aim is to provide high-quality products at an affordable price. If you receive a product that is damaged, do not use the item. Please inform us within 24 hours of receiving that product. We will replace the product as soon as possible without any charges.
REFUNDS
A refund will be provided if you have purchased an item that does not operate as described. Once we have verified you claims we will offer a refund and pay for the return freight cost.
