DEWALT 20V MAX 5 Ah Lithium Ion Battery DCB205
Tier Sby DeWalt
Top-notch construction and extremely high quality cells; DeWalt's own battery is undisputed. You pay for it, though.
View on Amazon →Ratings
Dead-on for 5 AH @ 18V nominal. Note the pack does state " 100 Wh" on the back, which is false.
Industry-leading tool contacts are unlikely to bend out of shape. Pack electrical construction is top-notch.
High capacity; the Samsung INR18650-25R is an excellent power tool cell.
Excellent performance thanks to solid electrical construction and great 18650 cells.
Samsung cells are very reliable and robust, combined with great pack electrical design.
Testing Statistics
Cell notes
Samsung SDI INR18650-25R. Rated 20 A max continuous discharge, 2500mAh capacity.
Cycling Test
We cycle the batteries at high-power (800W for 20s on, then 20W for 6s off) to reflect their actual usage in high-load scenarios like circular saw use.
Capacity Test
We measure the amount of usable energy the pack supplies from 100% to 0% charge.
Pack Internal Resistance Test
Failure Test
The battery is stepped through 30s at increasing current levels, ignoring safety features like temperature and voltage warnings, until the pack fails catastrophically.
Teardown Photos
