Batteries

Batteries are very important medium to store the energy .

these are of two types
* Primary battery
* secondary  battery

Primary batteries are basically those batteries which can not recharge after the discharge


one of the example of primary battery is dry cell , which we often use in our wall clock ,remotes and toy cars

secondary batteries are those battery which can be recharge after the full drain
the examples of these batteries are
*Li-ion batteries which use in mobile phones

 *lead acid batteries which use in our inverter

 *Li PO batteries which use in drones and laptops.