K2 Australia Pty Ltd - makers of all Dr Bob Beck Instruments since 2007.  

    26 December at 16:53 from atlas

    New rechargeable Battery.

    Type: USB 9V rechargeable battery

    Charging method: Only Micro USB Cable

    Material: lithium battery

    This battery has a built-in high-quality 3.7V1000mAh lithium battery. It uses its own patent boost technology to boost the battery to 9V. The battery voltage is stable and it has increased capacity.

    Standard voltage: 9V

    Built-in battery capacity: 1000mAh

    Built-in battery energy: 3.7WH

    Size: 49x26x17mm

    Product weight: about 25.8g

    Charging time: about 2 hours 

    Self-discharge current: 20uA