YBT 8.0Ah Replacement for DW20V MAX Battery
Tier Bby YBT
An all-around solid pack with high capacity and great electrical performance, nearly matching DeWalt's own. Held back by mid-tier electrical contacts, lack of safety features, and mystery-18650 cells.
View on Amazon →Ratings
Actual capacity 4.85Ah. It's just not possible to fit 8.0Ah into 10 18650s!
Flimsy tool contacts could easily get bent out of place. Otherwise solid electrically.
Actual capacity 4.85Ah.
Very high-performing pack. The mystery cells can really take a beating.
No obvious failure modes, but also no safety features. Safe to use.
Testing Statistics
Cell notes
Jiangxi Province Yunfuheng New Energy YFH18650-2500mAh. No available discharge performance data.
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.
