Trusted Hybrid Battery Solutions
Affordable 288V 6.5Ah NIMH Hybrid HV Battery Replacement For Toyota Sienna 2021
Precision Engineering
Meets OEM specs for perfect fit and performance.
Exceptional Cycle Life
Provides reliable performance over 6,000 cycles.
Stringent Quality Control
Each unit undergoes strict electrical, thermal, and safety tests.
Factory-Direct Pricing
No middlemen, lower cost, superior value.
Comprehensive Warranty & Support
Responsive service backed by robust coverage.
Global Logistics Network
Fast, secure international shipping per regulations.
Item No.: OK190816113
Type: NIMH Battery
Battery System Voltage: 288V
Capacity: 6.5Ah
Module Quantity: 40
Compatible Models: Toyota Sienna 2021
Industry-specific Attributes
| Manufacturer | Okacc Hybrid Batteries |
| Place of Origin | China (Mainland) |
| Battery Type | Ni-MH Battery |
| Module Type | Prismatic |
| Module Nominal Voltage | 7.2V |
| Operating Voltage | 6.0～9.0V |
| Nominal Capacity | 6500mAh Standard charge/discharge |
| Minimum Capacity | 6100mAh Standard charge/discharge |
| Nominal Energy | 45Wh |
| Power Density | ＞1450W/kg |
| Energy Density | ＞40Wh/kg |
| Max short continuous discharge current time | 300A 20℃～55℃ |
| Max short continuous discharge current time | 210A 20℃～55℃ |
| Max continuous charge current | 120A 20℃～55℃ |
| Storage Temperature | -20～35℃ |
| Operating Temperature | -30～55℃ |
| Open circuit voltage | ≥7.5V Within one hour after charging |
| Internal resistance | ≤14.4mΩ 50%SOC |
| Internal Impedance | ≤6.5mΩ 1kHz |
| Max continuous charge current | ＜16% |
| Energy Efficiency | ≥85% 25℃ |
| Volumetric Efficiency | ＞95% 25℃ |
The warranty period is 36 months or 100000 kilometers after acceptance, whichever comes first.
If a quality problem occurs within the warranty period, we are responsible for changing the damaged battery modules(Customers need to provide related battery module information)
The battery is not within the warranty range in the following situation:
Battery damage is caused by the failure to follow the transport, storage, installation, and use provisions.
Battery damage is caused by an external force (such as traffic accidents or natural disasters) or an external short circuit during use.
The out-of-control BMS caused the battery damage.
All Compatible Car Models
Installation Cautions for Battery Pack
Notes: Only a qualified technician should attempt to install a hybrid car battery. The battery pack's very high voltage can cause shock hazards, so you should wear insulating gloves and use insulated-handle tools when installing it.
Please operate according to the assembly manual during the installation of the Prius battery pack.
Do not mix our battery modules with those of other manufacturers, new modules with semi-used batteries, or battery modules within a battery pack with those in other battery packs.
Do not twist and bend battery modules and accessories when assembling the battery pack.
When assembling the battery pack, do not reverse-connect the anode and cathode of the battery module to prevent short circuits.
Fasten bolts and nuts with appropriate torque, avoid loose connections, or damage other accessories with too much torque.
Frequently Asked Questions
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Tags: OK190816113