Battery Life
Battery life for the Revolt 9000 is good compared to other large-size chargers. In our intensive ‘real world’ tests, the Revolt delivered over 638 minutes of power. Discharge rates were excellent, especially among large size chargers. The Revolt 9000 charged devices 20% faster than the category average, and was actually on par with the fastest rates found among small sized chargers.

Power/Size
Because of its relative size and weight, the Revolt scores only average for power per cubic inch, and power per ounce when compared to other large size chargers.

Durability
The Brunton Revolt 9000 is constructed from durable, rubberized high-density plastic. The USB charge ports are protected by a plastic cover that securely latches shut. The rubberized coating, however, does not cover several inset surfaces — including the plastic USB port cover. In the right circumstances, it is possible that these areas could be damaged on impact, such as by a sharp or jagged rock. In our tests however, we were not able to inflict severe damage to these areas, or to the device itself. 

The Revolt 9000 also carries an IPX5 water resistance rating, which means that the device would be protected from water jets at any direction. 

Features
Brunton’s Revolt 9000 is a fairly ‘bare bones’ device, offering only integrated 1 and 2.1 amp USB ports, and integrated power level indicators. USB cables are included, but are separate from the device.

Value
In terms of battery life per dollar, the Revolt 9000 is above average, delivering nearly 50% more power per dollar than comparable devices like the Braven BRV and Goal Zero Venture 30, but still considerably less than devices like the Kmashi 20,000, or the iBattz BattStation Optimus.

Gear Institute Battery/Power Test Results

Discharge rate:.5% per minute

Overall battery life:638 minutes

– Per cubic inch:30.67 minutes

– Per ounce:49.84 minutes

– Per cubic inch/ounce:2.39 minutes

– Per dollar:6.38 minutes