Godox WB26 Rechargeable Lithium-Ion Battery Pack WB26 B&H Photo Powerful Performance: Made with Premium Materials and Advanced Technology, It Offers High Energy Density, Long Cycle Life, Extended Durability, and Easy Portability Battery Activation Instructions: Due to the Battery Upgrade, If You Haven't Used the Battery for More Than a Month, It Will Automatically Go to Sleep. Therefore, Please Carefully Check the Information on the Product to Confirm the Correct Model 28.8V Lithium Battery Godox AD600Pro II 600W Outdoor Flash, 40W Style Light, 28.8V 2600mAh Battery, 0.01s - 0.9s Cycle Time, 360 Flash Full Power, 5800±200K CCT (AD600Pro Updated Version AD600Pro II Battery Replacement This high-capacity rechargeable battery delivers 360 full-power flashes with a 0.01-0.9s recycling time after a full charge Activation Method: Short Press the Battery Indicator Button to Activate(the Button Is to the Left of the Indicator) GODOX Upgraded WB26 Battery for AD600Pro II AD600Pro, Rechargeable Li-ion Replacement, DC 28., 8V 2., 6Ah 74., 88Wh – Also Compatible with Flashpoint XPLOR 600PRO II and XPLOR 600PRO Godox WB26 Battery for Godox AD600 Pro / AD600 Pro II Compatible Products: Godox AD600 Pro II AD600Pro II AD600ProII AD600, Compatible with Flashpoint XPLOR 600PRO II and XPLOR 600PRO