Battery Life
Battery life for the Victor K1 is excellent. In our ‘real world’ tests, the K1 survived for a full 280 minutes, and was bested only by its slightly larger cousin, the Kmashi MP806. Discharge rate is approximately 20% slower than the industry average for competing devices, but this does not seem to impact overall performance.

Power/Size
While the K1 did not deliver the most power per cubic inch, it did earn a respectable second place and out of all small portable chargers tested. The K1 was best in class, however, for delivering the most power per ounce.

Durability
The Kmashi Victor K1 is constructed mostly of plastic, with a very thin rubberized coating. Unfortunately, the plastic is thin and does not appear to be high-density, and damaged easily in impact tests. The K1 appears suitable for everyday use, but readers in need of a more durable battery may be advised to look elsewhere. 

Features
The K1 offers a 1 amp output and integrated power level indicators, but does not provide additional features like an LED flashlight or integrated charge cables found in similarly sized competitors. 

Value
The Kmashi Victor K1 is best-in-class for power per dollar spent among all small size portable chargers tested. Overall, it is an excellent buy. However, for a few dollars more, readers may want to look at Kmashi’s MP806, which provides significantly better durability and battery life, and also includes an integrated LED flashlight.

Gear Institute Battery/Power Test Results

Discharge rate:.4% per minute

Overall battery life:280 minutes

– Per cubic inch:52.83 minutes

– Per ounce:58.33 minutes

– Per cubic inch/ounce:11 minutes

– Per dollar:25.48 minutes