Battery : How to repair (4 volt) lead acid Chinese battery ?

In this video, I am trying to show you how we can repair 4 volt lead acid Chinese battery. When you realize the battery is not durable then you can use this process to fix it. You can find this type of 4 volt battery in all Chinese emergency led light, mosquito bat, bluetooth speaker, toys etc..... If you don&have lead acid battery then you can use distilled water which you can buy from electric or automobile parts shop. #Battery lead acid