Only in one review: Power 85 W (EBC-A20); In test 60 W (EBC-A20).
ZKEtech EBC-X 0510: The tester is recommended for battery life-cycle testing, though its functionality is specialized.
EBC-A20: It works and meets its stated specifications, but accuracy is limited and the power stage is pushed to its limits.
Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.