Comparison · Batteries

Sony VTC6 (counterfeit) or CGA-DU21

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Capacity: Sony VTC6 (counterfeit) (2129 mAh vs. 2073); Price: Sony VTC6 (counterfeit) (12.84 $ vs. 15.19).

Model	Sony VTC6 (counterfeit)2018Read review →	CGA-DU21Panasonic · 2015Read review →
Capacity, mAh	2129	2073
Price, $	12.84	15.19
Review conclusion	Not recommended	Recommended

Only in one review: Capacity at high current 2120 mAh (Sony VTC6 (counterfeit)); Test current 10 A (Sony VTC6 (counterfeit)); Energy 8.025 Wh (Sony VTC6 (counterfeit)); Temperature rise 68 °C (Sony VTC6 (counterfeit)).

Sony VTC6 (counterfeit): The counterfeit cells have low capacity and high resistance; the author recommends looking for better ones.

CGA-DU21: It delivered 2,073 mAh at a 500 mA discharge; in the second cycle, the author discharged it at 1.5 A.

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.