There is no need to replace the battery! Use this safe and lasting rechargeable battery with your Light sticks.  Product Contents - Battery- Type-C Charge Cable- Pouch- Sponge- Manual Compatible K-pop Light Sticks The HYBE Official Light Stick Battery is compatible with the following light sticks: - BTS Light Stick- HYBE LABELS Official Light Stick- BAEKHO Official Light Stick- HWANG MIN HYUN Official Light Stick- SEVENTEEN Official Light Stick Ver. 2- fromis_9 Official Light Stick- TOMORROW X TOGETHER Official Light Stick Ver. 2- ENHYPEN Official Light Stick- LE SSERAFIM Official Light Stick- NewJeans Official Light Stick- &TEAM Official Light Stick- BOYNEXTDOOR Official Light Stick How to Use the Battery 1. Insert the Light Stick in the correct orientation, with the Light Stick ground terminal facing the direction of the Light Stick LED.2. Ensure the battery fits snugly in the casing socket. If the battery is smaller and does not fit, the Light Stick may not turn on or may turn off intermittently.3. In case of a loose fit, attach the included sponge to the bottom of the battery before using it. Note: Inserting the Light Stick in the opposite direction may damage the terminal and cause product failure. HYBE Official Light Stick Battery Specifications **Model:** RCB-900  **Product Number:** HYBE Official Light Stick Battery  **Material:** PC  **Voltage:** DC 5V 2A  **Size/Weight:** Approximately 62 x 22 x 22 mm / 85 g  **Battery Capacity:** 9130mAh  **KC Number:** NM:11E06-260E11