Using this battery is easy. First, make sure your device is turned off. Then, carefully connect the battery to the circuit board horizontally using the solder tags. When soldering, be gentle to avoid damaging the battery or the board. As for safety, keep the battery away from high temperatures and moisture. Don't try to open or modify the battery yourself as it could be dangerous. To maintain the battery's performance, charge it regularly but don't over - charge. If you're not using the battery for a long time, store it in a cool and dry place.