Flylinktech 5000mAh 18V Lithium-ion FatPack Replacement Battery for Bosch BAT622 BAT620-2PK SKC181-202L BAT619G-2P 18v,5000mAh Li-ion Replacement Battery(Note:It's Replacement battery,not genuine).Compatible with all Bosch 18V Lithium-Ion tools and chargers. Fit for BOSCH # 2 607 336 091, 2 607 336 092, 2 607 336 170, 17618, BAT609, BAT618. All-weather performance: Delivers power in extreme jobsite conditions. Highest quality standards,Integrated microchip prevents overcharging & lengthens battery life. Built in high quality battery cells,No effect on the battery,Charging at any time.