How to build a battery charging station??

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Originally Posted by Charger

Also, in the competition, I saw teams charging their batteries just in 30 min. How is it possible?

The only legal method would mean they aren't discharging their battery too much. Or their charger isn't very good and isn't fully charging the battery.

It takes us about 2 hours to charge just one battery properly. And is there any way to use 1 charger to charge more than 1 battery?

There is, but you should only use a properly made charger for it. Andymark sells chargers designed to charge 3 simultaneously. There are others out there as well.

A few years ago, we took plywood and made a station with three drawers in it, plus extra room higher up. Each drawer could hold three batteries and an Andymark triple charger. It's worked well for us. We use some of the extra room in it for supplies and the safety kit.