More that the little sibling of the Magnus, the Viper comes stock with an 840 Watt/Hr Lithium Ion battery and proven motor technology that provides range galore. Speed control is achieved via a variable pitch propellor and a three speed Venom motor controller that allows you to ramp up the power at the twist of your wrist. Also stock are torque reduction fins and the exclusive Anuk system.

The Viper has been described as the perfect cave diving scooter. Perfectly balanced with the range to get you to the Henkel and back with plenty of range to spare.

The battery pack features the same Bluetooth monitoring as the Magnus for real-time control. 

As with the Magnus, all Vipers are tank tested for trim and pitch-roll prior to shipping. We pride ourselves that every scooter that we deliver will be Ready to Ride. No more fiddling with trim for hours, you should expect to fine tune your machine's trim only to your taste.

Subsea Propulsion Systems conducts extensive testing on all of our DPV's using the following assumptions:
Well Trimmed Male Diver in Drysuit wearing Steel 104's and no stage bottles. The diver is travelling at a speed of 150 feet per minute (46 metres per minute). Using this standardized diver we calculate the estimated range of the Viper to be approximately 22,500 feet (6858 metres) or expressed as time: 2 hours and 30min. 
Note: this is done in real world conditions using a very experienced diver. Gear configurations and experience may yield different results.