WTOZ10
10.24kWh EcoFlow Expansion Kit
View the WattCycle Rack Battery and EcoFlow Kits
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10.24kWh EcoFlow Kit – 2 Batteries + Rack + Adapter | Most Popular | Save A$50
Deal Price
| Deal Calculation | Amount |
|---|---|
| 2 × 5.12kWh rack batteries | A$2,959.98 |
| 1 × modular battery rack | A$129.99 |
| 1 × WattLINK EcoFlow adapter | A$89.99 |
| Separate component total | A$3,179.96 |
| Bundle saving | −A$50.00 |
| Bundle price before coupon | A$3,129.96 |
| Coupon code | WTOZ10 |
| Additional 10% discount | −A$313.00 |
| Final price | A$2,816.96 |
| Total saving compared with separate components | A$363.00 |
| Approximate final price per nominal kWh | A$275.09/kWh, including rack and adapter |
Apply WTOZ10 at checkout to receive 10% off the already-discounted bundle price.
Standard delivery is included for most Australian addresses. Additional freight may apply to WA, NT and certain remote locations.
What Is Included?
- 2 × WattCycle 51.2V 100Ah 3U Rack LiFePO4 Batteries
- 1 × modular battery rack
- 1 × WattCycle WattLINK M8-to-XT150-style EcoFlow expansion adapter
- Total battery-bank capacity: 51.2V 200Ah / 10.24kWh
Important: This is a WattCycle third-party expansion solution for compatible EcoFlow products. It is not an EcoFlow-branded expansion battery.
Items not specifically listed in the selected product option—including parallel interconnect cables, busbars, fuses, circuit breakers, DC isolators and installation labour—are not included.
Please confirm the exact package contents and installation requirements before ordering.
WTOZ10 Eligible Options
The WTOZ10 coupon applies to the battery and EcoFlow kit options on the linked product page.
It does not apply to standalone accessory-only options, including the rack or EcoFlow adapter purchased separately.
| Product Option | Component Value | Bundle Saving | Price Before Code | WTOZ10 Saving | Final Price | Total Saving |
|---|---|---|---|---|---|---|
| 5.12kWh – Battery Only | A$1,479.99 | — | A$1,479.99 | A$148.00 | A$1,331.99 | A$148.00 |
| 5.12kWh EcoFlow Kit – 1 Battery + Adapter | A$1,569.98 | A$20.00 | A$1,549.98 | A$155.00 | A$1,394.98 | A$175.00 |
| 10.24kWh EcoFlow Kit – 2 Batteries + Rack + Adapter | A$3,179.96 | A$50.00 | A$3,129.96 | A$313.00 | A$2,816.96 | A$363.00 |
| 15.36kWh EcoFlow Kit – 3 Batteries + Rack + FREE Adapter | A$4,659.95 | A$89.99 | A$4,569.96 | A$457.00 | A$4,112.96 | A$546.99 |
Prices are rounded to the nearest cent at checkout.
Coupon codes cannot be stacked.
Why Choose the Two-Battery Kit?
Each rack battery provides 5.12kWh of nominal energy. Connecting two matching batteries in parallel provides:
- 10.24kWh / 10,240Wh nominal battery capacity
- 51.2V nominal system voltage
- 200Ah combined capacity
- Approximately twice the nominal runtime of the single-battery kit
- One organised rack for a cleaner fixed installation
- One WattLINK adapter for connection to a compatible EcoFlow expansion port
- A lower package price than purchasing the components separately
The two-battery kit is better suited to longer caravan trips, extended outages and fixed off-grid applications than the single 5.12kWh option.
The two batteries weigh approximately 83.4kg combined, excluding the rack and cabling. This should therefore be treated as a fixed or professionally installed system rather than a regularly portable battery setup.
Approximate Runtime Examples
The following figures are based on the 10.24kWh nominal capacity of the WattCycle battery bank only.
| Average Load | Theoretical Runtime Before Losses |
|---|---|
| 100W | Approximately 102 hours |
| 300W | Approximately 34 hours |
| 500W | Approximately 20.5 hours |
| 1,000W | Approximately 10.2 hours |
| 2,000W | Approximately 5.1 hours |
Actual runtime will be lower after inverter conversion losses, cable losses, battery protection limits, temperature and reserved capacity.
The connected EcoFlow model may also impose its own charging, input and output limits.
EcoFlow Compatibility
This kit is designed for selected EcoFlow products equipped with a compatible XT150-style expansion port.
| Compatible Models | Not Compatible |
|---|---|
| EcoFlow DELTA 2 | EcoFlow DELTA Pro |
| EcoFlow DELTA 2 Max | EcoFlow DELTA Pro Ultra |
| EcoFlow DELTA 3 | EcoFlow DELTA Mini |
| EcoFlow DELTA 3 Plus | EcoFlow RIVER Series |
| EcoFlow DELTA 3 Max | Products without a compatible expansion port |
| EcoFlow DELTA 3 Max Plus | Models not specifically confirmed |
Compatibility may depend on the exact model revision and expansion-port specification.
Please confirm your complete EcoFlow model name before ordering.
How Does the Two-Battery Connection Work?
The two matching rack batteries are first configured as a parallel 51.2V battery bank:
- System voltage remains 51.2V
- Combined capacity increases from 100Ah to 200Ah
- Combined nominal energy increases from 5.12kWh to 10.24kWh
- The combined battery bank connects to the EcoFlow through one WattLINK adapter
- The adapter supports up to 50A bidirectional charging and discharging
- Battery information can be monitored through the LCD screens or WattCycle Bluetooth app
- The EcoFlow and WattCycle battery bank display and manage their State of Charge independently
- Actual power depends on the EcoFlow model, expansion port, battery voltage and operating conditions
Before connecting batteries in parallel:
- Use two matching batteries of the same model and capacity
- Bring both batteries to a closely matched voltage and State of Charge
- Use correctly sized, equal-length positive and negative battery cables
- Install appropriate busbars, fuses, circuit breakers and DC isolation
- Do not connect these batteries in series
- Follow the battery manual and obtain professional assistance if unsure
Before connecting the battery bank to the EcoFlow, keep the voltage difference between the WattCycle bank and EcoFlow within 1V.
A larger voltage difference may activate the EcoFlow protection system and temporarily stop charging or discharging.
Recommended Applications
- Caravan and Big Lap touring: fridge, lighting, water pump, TV, laptops and device charging
- Extended free camping: more reserve capacity for several days away from mains power
- Motorhome or van base power: keep the rack system installed while retaining EcoFlow portability
- Home emergency backup: fridge/freezer, Wi-Fi, lighting, security equipment and computers
- Off-grid cabins: solar storage for essential and moderate daily loads
- Farm sheds and rural workshops: fixed backup or compatible off-grid power systems
Main Battery Specifications
Specifications below are per battery unless otherwise stated.
| Specification | Per Battery | Two-Battery Bank |
|---|---|---|
| Battery chemistry | LiFePO4 | LiFePO4 |
| Nominal voltage | 51.2V | 51.2V when connected in parallel |
| Rated capacity | 100Ah | 200Ah |
| Nominal energy | 5.12kWh / 5,120Wh | 10.24kWh / 10,240Wh |
| Cells | BYD Grade A prismatic cells | Two matching battery packs |
| Cycle life | 6,000 cycles at 80% DOD | Subject to operating conditions |
| BMS | 100A continuous discharge | Each battery retains its own BMS |
| Peak discharge | Up to 200A for 2 seconds | Subject to system configuration |
| Active balancing | Up to 3A | Up to 3A per battery |
| Monitoring | Bluetooth app and touchscreen LCD | Monitor each battery |
| Communication | CAN, RS485 and RS232 | Master/slave communication supported |
| Maximum charging voltage | 58.4V | 58.4V |
| Dimensions | 485 × 450 × 133mm each | Two 3U batteries |
| Weight | Approximately 41.69kg each | Approximately 83.38kg, excluding rack |
| Case | Metal | Metal |
| Ingress protection | IP20 | Dry, protected installation required |
| Parallel capability | Up to 20 matching batteries | EcoFlow applications may have separate limits |
| Battery warranty | 5 years; eligible registration may extend it to 7 years | Same warranty terms per battery |
| Accessory warranty | 1 year | Rack and adapter |
Important Buying Notes
- These are 51.2V rack batteries, not 12V drop-in caravan batteries
- They are not suitable for starting petrol or diesel engines
- IP20 equipment must be installed in a dry, protected and ventilated location
- A compatible EcoFlow power station or inverter is required to supply AC appliances
- The 10.24kWh figure is nominal battery capacity, not guaranteed usable AC energy
- Actual charging rate and output depend on the EcoFlow model and its expansion-port limits
- Parallel cables and DC protection may be required separately
- Please confirm your EcoFlow model and installation plan before ordering
Other Home Battery Flash Deals
The same coupon code, WTOZ10, also provides 10% off the following home-storage products.
Prices below are for the No Charger + No Cable options. Multi-battery options already include their current bundle pricing.
16.07kWh 51.2V 314Ah Floor-Standing Battery
View the 16.07kWh Floor-Standing Battery
Key Features
- 51.2V 314Ah / approximately 16.07kWh
- 300A smart BMS
- Up to 15.36kW continuous DC output
- 3A active balancing
- 6,000+ cycles at 80% DOD
- Bluetooth app and LCD touchscreen
- CAN, RS485 and RS232 communication
- Floor-standing cabinet with caster wheels
- Up to 20 matching batteries can be connected in parallel
- Designed for home storage, rural properties, farms, workshops and off-grid systems
| Qty | Capacity | Price Before Code | WTOZ10 Saving | Final Price | Average per Battery |
|---|---|---|---|---|---|
| 1 | 16.07kWh | A$3,499.99 | A$350.00 | A$3,149.99 | A$3,149.99 |
| 2 | 32.15kWh | A$6,929.98 | A$693.00 | A$6,236.98 | A$3,118.49 |
| 3 | 48.23kWh | A$10,289.97 | A$1,029.00 | A$9,260.97 | A$3,086.99 |
| 4 | 64.30kWh | A$13,579.96 | A$1,358.00 | A$12,221.96 | A$3,055.49 |
Which Capacity Should I Choose?
| Capacity | Suggested Application |
|---|---|
| 16.07kWh | Residential solar storage, rural homes and essential-load backup |
| 32.15kWh | Larger off-grid homes, extended outages and higher daily consumption |
| 48.23kWh | Farms, remote properties, workshops and multi-building systems |
| 64.30kWh | High-consumption off-grid properties and professionally designed commercial backup |
Choose this model if you need approximately 16kWh or more from the beginning and prefer one high-capacity cabinet with fewer battery connections.
A compatible 48V inverter/charger and professionally designed DC protection system are required.
5.12kWh 51.2V 100Ah Wall-Mounted Battery
View the 5.12kWh Wall-Mounted Battery
Key Features
- 51.2V 100Ah / 5.12kWh
- BYD Grade A LiFePO4 cells
- 100A smart BMS
- 3A active balancing
- 6,000+ cycles at 80% DOD
- Bluetooth app and LCD touchscreen
- CAN and RS485 communication
- Compact 398 × 200 × 625mm wall-mounted design
- Approximately 45kg per battery
- Modular parallel expansion for larger storage requirements
| Qty | Capacity | Price Before Code | WTOZ10 Saving | Final Price | Average per Battery |
|---|---|---|---|---|---|
| 1 | 5.12kWh | A$1,299.99 | A$130.00 | A$1,169.99 | A$1,169.99 |
| 2 | 10.24kWh | A$2,573.98 | A$257.40 | A$2,316.58 | A$1,158.29 |
| 3 | 15.36kWh | A$3,821.97 | A$382.20 | A$3,439.77 | A$1,146.59 |
| 4 | 20.48kWh | A$5,043.96 | A$504.40 | A$4,539.56 | A$1,134.89 |
Which Capacity Should I Choose?
| Capacity | Suggested Application |
|---|---|
| 5.12kWh | Essential backup, small cabins, fridge, lighting, Wi-Fi and computers |
| 10.24kWh | Longer home backup, small off-grid homes and farm sheds |
| 15.36kWh | Medium-sized off-grid homes and rural solar-storage systems |
| 20.48kWh | Larger household backup, extended outages and modular farm storage |
Choose this wall-mounted model if you want a lower starting cost, space-saving installation and the flexibility to add more capacity later.
Compatible 48V Inverters
The home-storage batteries provide CAN and/or RS485 communication for integration with selected compatible 48V inverter systems.
Depending on the exact battery and inverter model, supported brands may include selected systems from:
- Victron
- Deye
- Growatt
- GoodWe
- SOFAR
- SMA
- Solis
- MPP Solar
Brand compatibility alone does not guarantee plug-and-play communication.
Please provide the complete inverter model number and required communication protocol before ordering so compatibility can be checked.
Australian Spring Caravan Sale: 6% Off Storewide
Can’t find the right product in the featured deals above?
OzBargain shoppers can receive 6% off other eligible WattCycle products storewide.
Coupon code: WTOZ6
Shop the Australian Spring Caravan Sale
The storewide offer covers eligible products including:
- 12V caravan, camper trailer, motorhome and 4WD batteries
- 24V trolling motor and marine batteries
- 48V golf cart batteries
- Rack-mounted, wall-mounted and floor-standing batteries
- Compatible chargers, cables and accessories
Coupon Guide
| Product | Coupon | Discount |
|---|---|---|
| Eligible rack battery and EcoFlow kit options | WTOZ10 |
10% off the displayed bundle price |
| 16.07kWh floor-standing battery | WTOZ10 |
10% off |
| 5.12kWh wall-mounted battery | WTOZ10 |
10% off |
| Standalone rack, EcoFlow adapter and accessory-only options | Not eligible for WTOZ10 |
— |
| Other eligible store products | WTOZ6 |
6% off |
Coupon codes cannot be stacked. Please use the code that provides the best available discount for your selected product.
Shipping and Installation
- Standard delivery is included for most Australian addresses
- WA, NT and some remote locations may incur additional freight charges
- Large batteries may be delivered by freight rather than standard parcel services
- 51.2V home-storage batteries require a compatible inverter/charger, sold separately
- Cabling, fuses, circuit breakers, busbars and DC isolation may be required
- Residential, grid-connected and multi-battery systems should be designed and installed by a suitably licensed professional
- Confirm inverter compatibility, communication protocol and local installation requirements before ordering
- These products are not being advertised in this deal as automatically eligible for an Australian government battery rebate
- Please independently confirm current CEC product-list status, grid-connection requirements and rebate eligibility before purchasing
If you are unsure, leave your exact EcoFlow model, inverter model or intended application in the comments and we can help check compatibility before you order.
Ahead of her time…🚲