This is a single unit of 11.8V-2ah (2000mAh) Lithium Ion Battery with inbuilt Battery Management System (BMS) which provides it multiple protections as well as ensures enhanced battery performance & life. 

This type of battery is suitable as a retrofit or replacement for traditional 12V lead acid type batteries used for powering 12V Solar Lanterns, CCTVs, Off Grid Lighting & Solar Kits and for experiements & science projects as well as for General Lighting. 

One may use it like any other battery but with the advantage of having a lithium type battery which is portable, durable, easier to install & handle as well as more efficient. It can be charged via 12V solar panels of 5W & above with a suitable charge controller in between. 

By purchasing charge controller or regulators, one can use it for off grid purposes while trekking, camping or otherwise. If used efficiently & properly,

 it will deliver upto 1500 cycles during its lifetime. 

We recommend Solar Universe India Solar Panels & Charge Controllers for best performance of this battery.