APPLICABLE TO MULTIPLE DEVICES- WILD BADGER POWER Battery Cordless 40 Volt 2.0Ah can be used for all 40v Lithium Ion battery String Trimmer, Leaf Blower, Pole Saw,Lawn Mower,Chainsaw,Snow Blowers from WILD BADGER POWER. EASY INSTALLATION.-Switching from one tool to another is very simple. BATTERY STATUS OBATTERY STATUS OBSERVATION.-The LED lights provide a clearer indication of the charging progress, making it very user-friendly for you to monitor the charging status.BSERVATION. The LED lights provide a clearer indication of the charging progress, making it very user-friendly for you to monitor the charging status ENDURANCE & WEIGHT-Almost no self-discharge for maximum productivity and less downtime allowing user maximum run-time in a lightweight battery. RAPID RECHARGING CAPABILITY-Employs advanced fast-charging technology to fully recharge rapidly, minimizing downtime while maintaining peak performance. VARIOUS SCENARIOS：The electric chainsaw can be used to fell trees, trim branches, process timber, clean up a tree or limb brought down by a fierce autumn or winter storm, build structures, craft furniture and so on. VISUAL BATTERY INDICATOR: The battery status can be indicated by the LED light during both usage and charging, which allow you to easily and intuitively assess the power level and help you plan your operation with ease.