A battery balancer is like a superhero for our electronic gadgets that use batteries. It is a special device that makes sure all the batteries in a system are charged equally and stay healthy.
Think of it like sharing cookies among friends. Sometimes one friend eats more cookies than the others, leaving some cookies behind. This is not fair because everyone wants to share equally. In the same way, batteries in a system can have different capacities and ages, which can cause one battery to be used more than the others, leaving it uncharged or overcharged, making it unhealthy.
But a battery balancer solves this problem. It is like a friendly cookie thief that takes cookies from the friend who eats more and gives them to the friend who gets less, so everyone is happy and gets an equal share. Similarly, the battery balancer takes charge from the battery that is more charged and gives it to the battery that is less charged, making sure all the batteries in a system are equally charged and healthy.
In summary, a battery balancer is a superhero that makes sure all the batteries in a system are sharing the load equally so that they have a long and healthy life.