Powerful lithium-ion battery pack compatible with all STIHL AP System tools. The battery pack can be charged several hundred times without significantly decreasing the capacity, no memory effect and constant power while in operation. Allows operation for long periods, just like a gas machine. Includes a charge level indicator with four LEDs for indicating the charge level. Rechargeable with STIHL charger AL 101, AL 300 or AL 500. Technical Details Battery cell technology Lithium-Ion AP 100 Battery weight KG / LB 0.8 / 1.8 AP 100 Battery energy WH 94 AP 100 Rated voltage V 36 Features LED charge level indicator There are four LEDS on the battery to indicate the charge level. Simply press the button to see how much energy is left. Intelligent electronics STIHL batteries feature an intelligent battery management system - this advanced technology gives a constant level of power whether the battery is 100% charged or 20% charged. FAQs Question: What tools can I use this battery in? A: This battery will fit in any of the tools in the STIHL AP System, including the FSA 85 and FSA 90 R grass trimmers, HSA 66, BGA 86 leaf blower and the RMA 510 and RMA 510 V lawn mowers. Question: How long does it take to charge? A: Using the AL 101 charger, you can fully charge the AP 100 battery in 100 minutes, or you can charge it to 80% in 75 minutes. Using the AL 300 quick charger takes 45 minutes to reach 100% and 30 minutes to reach 80%. Tips #1 Looking after your battery Don't use a damp or wet battery in your tools and avoid using them in extreme temperatures (very hot or very cold). #2 Storing your battery Take your battery out of the tool you have used it in and store it separately in a clean, dry place out of direct sunlight and ideally in some packaging, such as cardboard, to protect it, at a temperature between -10°C and 50°C. Don't forget to keep it out of reach of children.