- Developed and exported the small-size battery charger to Japan.
- Developed the portable device battery and charger for tourist guides.
- Developed the high-capacity battery for GPS devices.
- Developed the LED-support battery for bicycles.
- Developed the external battery for the navigation device.

Portable battery charger | Portable mobile phone charger | iPhone portable charger | iPad portable charger | Emergency battery charger | Portable rechargeable battery |
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