This white battery pack is a perfect direct - fit replacement for the back/vibrato cover on a Strat®. It's the ideal power source for Fishman Fluence pickups. You won't need to modify your guitar at all! It can also power other on - board 9 - volt pickups and accessories. With a current capacity similar to a top - notch 9 - volt alkaline battery, it's rechargeable via a standard mini - USB cable that comes in the box. LED indicators clearly show when the battery is fully charged and when it's time to recharge. It takes 3 hours or less to fully recharge from empty, and a full charge gives you weeks of playing time (depending on the load), not just hours. Specifications: Dimensions are 5.68” H x 3.54” W x .23” D (144 mm x 90 mm x 5.85 mm), it weighs 2.8 oz (2.26 g), has a battery life of up to 250 hours, and comes with a connection wire and a micro - USB cable.

Using this battery pack is easy. First, remove the back/vibrato cover on your Strat® and fit the battery pack in its place. Connect the necessary accessories like pickups or other devices using the connection wire. To charge the battery, use the included micro - USB cable and plug it into a power source. The LED indicators will tell you when the battery is full and when it needs recharging. When the battery is low, simply recharge it. It takes 3 hours or less to get a full charge. As for maintenance, keep the battery pack clean and dry. Avoid exposing it to extreme temperatures. If you're not going to use the guitar for a long time, it's a good idea to remove the battery pack and store it in a cool, dry place.