Description
LiFePo4 18KWh Off-Grid Battery: Long Duration Version
Specially designed for 4 hour long duration charge and discharge off grid focused battery can power your home or tiny home for years to come. The maximum charge and discharge is 0.25C, which is half the usual, and it means you should not charge or discharge with more than 4000 Watts. In most cases you will need at least 2 of these batteries to provide the appropriate power.
SALE EVENT – PAY JUST $4599 PRE-ORDER for 18kWh BatteryÂ
DECEMBER 2025 DELIVERY-Â SOLD OUT
FEB 2026 DELIVERY-Â AVAILABLE
Why Choose This Battery?
- Unbeatable Value:Â Combines premium quality and wholesale to consumer competitive pricing, delivering the best value for your investment.
- Longevity: These A GRADE 345AH cells are the highest capacity LFP cells available, they are the most expensive of all battery cells, with a lifespan designed to outlast other LiFePO4 batteries, you can count on sustained performance and reduced maintenance costs.
- High Performance: Perfect for off-grid, this battery is engineered to handle diverse energy demands with ease. Its supporst ONLYÂ 4000W Charge and Discharge. Parallel 2 or 3 more to cover most Off-grid systems, Get 2 to work under 8kVa, and 3 for 12kVa and 4 for 16kVa
- Cutting-Edge Technology: Incorporates the most advanced BMS with active balancing and high-grade cells to ensure safety, efficiency, and reliability.
Ideal For
- Off-Grid Living:Â Reliable power for homes, cabins, and remote locations without access to the grid.
- Solar Energy Systems:Â Maximizes the benefits of renewable energy, storing and supplying power efficiently.
- Backup Power:Â Ensures continuous power supply during outages, maintaining the operation of essential systems and appliances.
Featuring the latest and greatest Victron, Growatt and Deye inverter support BMS from JK BMS, you can rest assured you have the absolute best value battery on the market.
| LiFePO4 Lithium Battery Pack Spec | |
| Model Description | Rated 17,6Kwh (Actual 18+kwh) |
| Nominal Parameters | |
| Voltage | 51.2V |
| Capacity | 345Ah |
| Energy | 17.6Kwh Rated Capacity (but really 18+kwh) |
| Dimensions (L*W*H) | 750mm x 439mm x 252mm |
| Weight | 110kg |
| Basic Parameters | |
| Potential Lifespan (25℃) | 10+ Years of daily use at recommended 0.2C or less ≈25°C |
| Life cycles (80%DOD, 25℃) | 8000 times |
| Operation temperature | 0℃ to 55℃ |
| Charging temperature | 2℃ to 45℃ |
| Enclosure protection rating | IP21 |
| Electrical Parameters | |
| Operation voltage | 46-58.4v DC |
| Max.charging voltage | 58.4v DC – Recommended 56.8VDC |
| Max.charging and discharging current | 100A BMS – Programmed to 86A Charge and Discharge |
| Max Continuous power | 4400W – This is very important |
More Reasons this is the Battery for you off Grid requirements
- Its user repairable – Most batteries are welded, and use proprietary BMS solutions. You cant repair them, and in most cases neither can we.
- It includes a  Single pole Circuit Breaker which ensures a basic level of safety. You might consider adding a Double Pole such as the ZJ BENY 250A MCCB inline for a higher level of protection, which is commonly installed especially when used in parallel, and doubles as the isolator in Australian regulations
- We can build any custom battery solution ourselves, we can repair them, and we can support you to add, or customise
- We are significantly better value for money than most competitors, due to our unique business model, very low business overheads, combined with our shipping processes.
- Lithium Batteries are not all the same. The LiFePro range use premium battery components and Automotive A grade cells at wholesale prices
This stackable battery is perfect for those looking for the highest value battery available. You cannot beat the price to Kilowatt hour on this beast.
Using 345AH cells, and a BMS that supports a large 2 Amps of Active balancing, and parallel function, you can stack up to 3 of these batteries in a stack for a combined total of 54Kwh.
A total of 15 can be installed in Parallel for a total of 270kWh of capacity, however, in practice it requires you to understand that you must plan
Delivery is $200 per battery to Brisbane, Sydney and Melbourne TNT/FEDEX Depot or Commercial Business with Forklift onsite at all times.
All other delivery locations due to Dangerous Goods and heavy bulk fees by all couriers. We can quote you if you contact us.

