Q1: How do I know which battery fits my tool? > A: Please match the voltage (e.g., 20V, 40V, 60V) of the battery to your bare machine. All our tools within the same voltage platform share the same battery interface. > *(Please ensure that the battery voltage (e.g., 20V, 40V, 60V) matches the voltage of your bare machine. All tools under the same voltage platform use the same battery interface.)* Q2: What is the difference between a backpack battery and a standard plug-in battery? > A: Backpack batteries offer significantly larger capacity for extended runtime and are worn on the back to reduce arm weight, ideal for long working sessions. > *(Backpack batteries have larger capacity, providing extended battery life, and the backpack design reduces the load on the arms, making them very suitable for long-duration, high-intensity work.)* Q3: How should I store the battery when not in use? > A: We recommend storing the battery in a cool, dry place and keeping it charged at around 50% if not used for a long period to prolong its lifespan. > *(We recommend storing the battery in a cool and dry place. If it will not be used for a long time, it is recommended to keep the charge at about 50% to extend the battery's service life.)*