SKU: 18293859307

AK 20 Battery

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Description

AK 20 BatteryCompatible with the tools in the STIHL AK System, the AK 20 is a lightweight 36 V lithium ion battery. It features a charge level indicator on the top with four LEDs, so you can see how much charge you have left quickly and easily, at the touch of a button. This is the recommended battery for the MSA 120 C BQ chain saw and the BGA 57 blower and has been designed to balance perfectly with these tools. Runtime on recommended battery: The runtime for

Compatible with the tools in the STIHL AK System, the AK 20 is a lightweight 36 V lithium-ion battery. It features a charge level indicator on the top with four LEDs, so you can see how much charge you have left quickly and easily, at the touch of a button. This is the recommended battery for the MSA 120 C-BQ chain saw and the BGA 57 blower and has been designed to balance perfectly with these tools.

  • Runtime on recommended battery: The runtime for this battery depends on which tool you are using it in.
  • Charging time: To fully charge an AK 20 battery using the AL 101 charger takes 180 minutes, but you can charge it up to 80% in 135 minutes.
Technical Details
Battery cell technology Lithium-Ion
AK 20 Battery weight KG / LB 1.2 / 2.7
AK 20 Battery energy WH 118
AK 20 Rated voltage (V) V 36


Features

LED charge level indicator

There are four LEDS on the battery to indicate the charge level of the battery. Simply press the button to see how much battery life 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 1% charged. To find out more about the intelligent electronics in our battery visit www.stihl.ca.

 

FAQs

Question: What tools can I use this battery in?

A: This battery will fit in any of the tools in the AK System. However, it is the recommended battery for the MSA 120 C-BQ and the BGA 57.


Question: How long does it take to charge?

A: To fully charge an AK 20 battery using the AL 101 charger takes 150 minutes, but you can charge it up to 80% in 105 minutes.


Question: Can I charge it any quicker?

A: We make two fast chargers, the AL 300 and AL 500. The AL 300 charger will charge this battery to full capacity in 55 minutes.

 

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.

 

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SKU: 18293859307

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4.5 ★★★★★
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Doraiky
West Palm Beach, US
★★★★★ 5
Bueno
Size: 5 Quarts
Bueno
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
E
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E.B.
Dallas, US
★★★★★ 5
switched from Mobil 1
Size: 5 Quarts
always used Mobil 1, my 2003 accord v6 always burned a little bit of oil, switched to this and it barely burns any at all now. will continue to use this from now on.
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Reviewed in the United States on April 27, 2026
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Joe S
Lake Worth, US
★★★★★ 4
ITS GOOD OIL
Size: 5 Quarts
OVERALL NOT BAD BUT USING IT TO SEASON A CAST IRON WILL CREATE A BIT TOO DARK OF A SHEEN. WISH THE MANUFACTURER MENTIONED THAT
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Reviewed in the United States on April 8, 2025
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patricia
Massapequa, US
★★★★★ 5
buenos
Size: 5 Quarts
Siempre compro de este aceite y es buenisimo me gusta
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Reviewed in the United States on May 5, 2026
E
Verified Purchase
E. K. Byham
Boise, US
★★★★★ 5
An essential work in putting American history in perspective
Format: Hardcover
This is a great book. It is not a book for everyone, however. If you don't know the difference between the Pilgrims and the Puritans, and I don't mean just when they arrived, try something simpler. It is a fascinating read if you already have some knowledge. For example, had I not been familiar with Hudson River geography and history, I'm not sure I would have been able to follow Bailyn's account of New Netherland. Naturally, as in any history, the most interesting stories are those you haven't heard before. For me, that was the information about New Sweden; I even read that section first. What makes Bailyn's book great, however, is his ability to make one see material one already knows a great deal about in new ways. Although he never addressed this question per se, he helped me answer a question that has been on my mind for at least fifteen years, and on which I've done considerable research - why did the Puritans, who arrived in 1630 as staunch Presbyterians, deriding their Separatist/Congregationalist Pilgrim neighbors, declare themselves Congregationalists in 1648 in the Cambridge Platform? (In part, the answer Bailyn helped me surmise is simply that when two or three Puritans gathered together, they had at least four different theological positions. It was hard enough to reconcile them in a single congregation; a presbytery would have been impossible.) The book also caused me to reassess my whole viewpoint on early Connecticut, and I certainly came to appreciate the importance of John Winthrop, Jr. beyond his role there. It is amazing too that Bailyn covers such a wide range of issues while devoting relatively few pages to each. The review in The New York Times Book Review, at least as I recall it, was wrong. While that reviewer praised the Virginia, Maryland and New Sweden/New Netherland portions, the New England portion (about 40% of the book) was dismissed as being only of interest to genealogists. While it is true that the earlier sections were more reflective of the book's subtitle, "The Conflict of Civilizations," the New England section would be of interest to a rather small portion of the genealogical community. (For example, I learned nothing new about my only ancestor discussed in the book, William Vassall.) I doubt if that reviewer has ever seen an on-line genealogy, which frequently contain claims such as that so and so was born in 1585 in the United States. As I have already said, the New England section, like the rest of the book, does a marvelous job of putting information in perspective; something that anyone interested in history needs to do.
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Reviewed in the United States on July 10, 2013

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