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AK 20 Lithium-Ion Battery

AK 20 Lithium-Ion Battery
A powerful and lightweight 36-volt battery for those who value balanced performance.

Product Description

Note: Product availability may vary by location.

The power of STIHL, now in a battery. STIHL Lithium-Ion batteries deliver the power-to-weight ratio you’ve been waiting for. The AK 20 is part of the STIHL AK Series, weighs only 2.7 lbs. and is great for applications where more run time is needed. Our batteries are engineered for minimal loss of charge during storage and performance that runs the power tool until the battery is depleted. Indicator lights show the battery level of charge, so you can plan your productivity accordingly. Inside the battery, sensors monitor temperature and automatically shut down if the battery ever becomes hot. Ready to take your battery power to the next level? Then switch to the STIHL Lightning Battery System®.

View Our Usage Chart


1.2 kg (2.7 lbs.)
100 Wh
36 volt
2.8 Ah

Important Information

WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.


AK 20 Lithium-Ion Battery is rated 4.0 out of 5 by 2.
Rated 4 out of 5 by from big improvement over the stock battery This is the battery my Stihl weed eater should have come with. Could only get about 15 minutes out of the stock one. Ran this one for 15 minutes and it hadn't lost a bar. A hundred bucks for this battery, and two hundred for the weed eater. I love it. But being into it for three hundred is a little steep. This battery is heavier. But well worth it. I love Stihl products. But just put the good battery on it to begin with.
Date published: 2017-10-20
Rated 4 out of 5 by from great bang for the buck. What a new and innovative product. its not all about voltage like some of the competition would like you to believe. 36volts and 2.8ah is a great entry level battery that gets the job done for the homeowner at an affordable price !
Date published: 2017-08-25
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You Will Also Need

For Your Safety


Product Instruction Manual (PDF)
STIHL Limited Warranty
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