MAXIMUM PERFORMANCE INCREASE. Thanks to internal intelligent electronics, STIHL power tools and batteries communicate with each other. If the device and battery are equipped with the POWER BOOST function, the battery always provides the maximum possible power for the respective application. In order to ensure optimum battery life, the device temporarily adjusts the power if it is used too intensively.
Technical details
| Rated voltage | 36 V |
| Max. voltage | 40 V |
| Cordless power system | ALLPRO/AP |
| Battery weight | 2.9 lb |
| Energy content | 144 Wh |
Features
CONSTANT POWER, REGARDLESS OF BATTERY CHARGE STATUS. With other brands of battery tools, the performance usually decreases during work as the battery discharges. This is not the case with STIHL cordless power tools with CONSTANT POWER. Thanks to the intelligent electronics, your STIHL power tool works with consistently high power.
SPLASHWATER PROTECTION. The IPX protection classes define the moisture protection of electrical or electronic devices. The moisture protection test is defined in different stages. IPX4 certifies protection against splashwater from all sides.
SMART TECHNOLOGY FOR RELIABLE PERFORMANCE. STIHL batteries, tools, and chargers are designed to communicate with one another to maximize efficiency and help protect battery health. Advanced battery management continuously monitors critical operating conditions, including temperature and charge levels. When necessary, the system can automatically adjust tool performance to help protect battery components while allowing work to continue.
ADVANCED COOLING FOR RELIABLE PERFORMANCE. STIHL batteries are engineered to help maintain optimal operating temperatures. Built-in cooling features and an efficient cell design work together to dissipate heat quickly and evenly, helping support consistent power output, reliable performance, and extended battery life.
The STIHL AP 20.1 is the ideal entry point into the ALLPRO battery system—delivering reliable performance, versatility, and great value for both ambitious homeowners and professional users. Built for a wide range of landscaping and property maintenance tasks, it powers your STIHL tools with efficiency and confidence.
Engineered with proven STIHL battery technology and a durable design, the AP 20.1 is ready to handle real-world conditions. Its IPX4-rated construction protects against splashes from any direction.
Designed to keep you moving:
- Power Boost Performance: Automatically delivers extra power when tackling tougher jobs for smooth, consistent results.
- Built-In Protection: Intelligent electronics monitor performance and adjust output in overload situations to help extend battery life.
- Long-Term Reliability: Designed for up to 1,200 charge cycles, providing dependable power you can count on season after season.
Flexible compatibility: Fully compatible with STIHL ALLPRO and AP system tools, giving you seamless performance across your entire equipment lineup.
Hazard Warnings
Proposition 65 - English
This product contains chemicals known to the State of California to cause cancer and reproductive harm. www.P65Warnings.ca.gov
