Using your Dorado E - bike battery is easy. First, make sure it's properly installed in the bracket of your bike. Connect it securely according to your bike's connection requirements. To charge the battery, use the included 4.5A fast battery charger. Just plug it in and let it charge. When it comes to maintenance, keep the battery in a dry and cool place. Avoid exposing it to extreme temperatures. Check the connection regularly to ensure it's stable. Also, don't over - discharge the battery. The battery has a 12 - month warranty, but remember that frame batteries vary in size and connection, so always double - check your bike's compatibility before using it.