The normal battery life of a good quality tracker is around one year, and for some, it usually lasts 15 days or 7 days. Also, it can last much longer depending on how long you use your activity tracker.
You can quickly charge your battery by using a USB cable and your laptop or pc. Also, you can use an outlet. Some of the newest technology trackers use magnets when you are charging your phone. All you have to do is connect them and plug the USB cable into your PC or outlet.
The time of charge can vary. Some activity trackers need a longer time for them to charge, while some take around one hour or two. It all depends on the quality of the activity tracker and, as we said, how long you are going to use it.