We developed the world’s first purpose-built lithium-ion replacement battery designed specifically for your Hyundai and Kia hybrid — it is engineered to outlast the vehicle!
Working with a leading global cell manufacturer, we created an all-new lithium-ion cell rated for up to 50,000 cycles under controlled operating conditions. It offers outstanding temperature tolerance and significantly lower internal resistance than the original LG lithium-ion cells used in Hyundai and Kia hybrid batteries.
The result is stronger power delivery, improved efficiency, and a more responsive driving experience—bringing the full potential back to an aging hybrid. A true hybrid reborn.
This NexPower battery pack will fit the following vehicles:
- 2011-2019 Hyundai Sonata hybrid
- 2011-2020 Kia Optima hybrid
Technical Specifications
- Cell capacity: 5.5 Ah
- Operating temperature: −30°C to 60°C
- Storage temperature: −40°C to 70°C
- Rated cycle life: Up to 50,000 cycles at 25°C and 30–80% state of charge
Note: Don’t be fooled by some companies advertising “new-generation cells” that are actually used cells removed from junk hybrid vehicles.
Our battery is not recycled, repurposed, or salvaged. It was researched, engineered, and manufactured from the ground up specifically for hybrid-vehicle applications.




