fbpx
May 9, 2021

Professional Tool Reviews for Pros


How Do Battery Cells Affect Power Tools? Video Review

Around here, we primarily focus on the tools and gear surrounding the construction industry. That makes the 21700 vs 18650 lithium-ion battery cell conversations incredibly relevant to us. After all, these lithium-ion power sources reach far beyond the latest cordless tools. They’re driving innovation in Teslas, hoverboards, the vaping community, and so much more.


21700 Vs 18650: What Do the Numbers Mean?

21700, 18650, 20700, and others simply refer to the physical size of the lithium-ion cell. For 18650, it’s an 18 mm diameter x 65 mm length. 21700 is 21 mm x 70 mm. While the explanation is simple, the difference is profound. It’s easy to see with a quick volume calculation.

18650

3.14(9 x 9)(65) = 16,532 cubic mm

21700


3.14(10.5 x 10.5)(70) =  24,233 cubic mm

An extra 5 mm of length and 3 mm of diameter gives us 47% more volume. That’s a little more than 7,700 cubic mm of space to pack with energy-delivering anode, cathode, and electrolyte materials.

Read The Full Written Review Here

Related articles

EGO Commercial Backpack Battery BAX1501

EGO Commercial Backpack Battery Power is the Heartbeat of the Commercial Line As EGO moves from its dominance of the residential battery-powered OPE market and begins targetting Pros, the EGO Commercial Backpack Battery serves as its primary power source. Pros Highest capacity of all currently available backpack batteries Surprisingly comfortable design 3.5-hour charging with Quick […]

Makita Portable Battery Backpack Power Supply PDC01

Makita Battery Backpack Extends Runtime, Cuts Downtime Makita’s high-capacity power supply solution is designed to complement the 18V LXT and 18V X2 line of power tools. By utilizing four 18V LXT batteries, the Makita PDC01 Backpack Battery Power Supply extends the runtime of your Makita cordless tools. Unlike backpack batteries that need to sit on […]

Subscribe
Notify of
guest
1 Comment
Newest
Oldest Most Voted
Inline Feedbacks
View all comments
Fyrfytr998

Man Caver Tools showed how which type of battery cell you have plays a difference in performance. Flex Turbo has been dominating 18650 powered tools, but fell short in his test that Milwaukee and DeWalts running 21700’s passed.

Last edited 16 days ago by Fyrfytr998
1
0
Would love your thoughts, please comment.x
()
x