Product Information: Type: Li-ion Voltage: 21.9V Capacity: 2500mAh Energy: 54.75Wh Net Weight: 410g Original Replacement Part: RS-RH5650 Compatible with the following models: RH9037 RH9051 RH9057 RH9059 RH9079 RH9081 RH9086 RH9089 Replacement Battery for ROWENTA RH90 AIR FORCE 360 ORIGINAL RS-RH5650 Note: Before purchasing, please ensure that the battery size, voltage, and model match your device. Package Includes: 1 x 21.9V 2.5Ah Replacement Battery Attention: 1. Do not touch the battery or circuit board directly with hands. Always wear anti-static gloves during installation to avoid potential burns from contact with skin. 2. Keep dry, clean, and cool. Store away from heat and metal objects. 3. Do not store the battery for long periods. Use at least once a month.