whether you have two battery or three battery or four, you can use the battery housekeeper
to help you ,it can makes you more efficient more faster and save your time.
1-Each battery status display with LED lights, the products are small, easy to carry.
2-Built-in power management ensures that all batteries are safe all the time.
3-External hard material can protect the battery from another influence compensation.
4-3 sockets for 3 batteries charging at the same time,that makes you more efficient more faster and save your time.
Please note: This product does not include a battery.