Pilot’s Choice Product Review

Venom Pro Duo Charger A space-saving simultaneous battery charger


As your model hangar grows, no doubt so does your battery collection. I can guess that not all of your batteries are the same type or size—mine certainly aren’t. The Pro Duo Charger from Venom is a great solution for charging all types of batteries, and you can charge up to two at a time. Right out of the box, the Pro Duo is nearly ready to go. You just need to plug it in. The box contents include the charger, eight different charging leads, two balance boards, AC and DC power cables, and an operating manual. I loved the look of this charger right

away. It is lightweight and much smaller than I expected. The vertical stance means that it saves a lot of space, not only on your workbench, but when packing the car and heading to your local flying field. I charge my flight batteries at work and this charger is fairly inconspicuous on my desk. Another great feature of this charger

is that its power is built in and there is no need for a separate power adapter. The back of the charger offers ports for an AC and a DC power cable. The back of the charger also has a place for temperature sensor plugs, which are available for purchase separately. The Venom Pro Duo supports the charging of most common battery chemistries: LiPo, Li-Ion, LiFe, LiHV, NiCd, NiMH, and Pb (lead acid). It is also set up with two complete charging circuits, each with a dedicated 80-watt integrated power supply. This means two batteries can charge simultaneously without diluting your amp rate. Each battery channel also has its own fan that turns on during charging.

The LCD display is clear and easy to read. All menu navigation is done with five buttons set on the front of the charger. The channels are distinguished by a red light on either the left (channel one) or right (channel two), so you

The space-saving Venom Pro Duo Charger comes complete with AC/DC power supplies and charging leads for the eight most common battery connection types.

can quickly tell which channel you are programming. You can switch between channels with the push of a button. To get started, plug your charger into

the wall and the LCD display will light up. Plug in the balancing connectors for each channel. The battery I first used with this charger had an XT60 connector, so I located the appropriate lead and plugged that into channel one—red in red and black in black. Using the buttons on the charger, I can set a program for the type of battery that I have. In this case, it’s a 4S LiPo. The display will read “User Set” and by pushing the enter button, I can select my battery type. Mine is already set to LiPo and the appropriate cell voltage (3.7 volts), so I don’t need to change anything here. If you are using a different type of battery, you can cycle between the types by using the two center buttons on the charger that are labeled as “dec” and “inc,” for decrease and increase.

The extra-long balance cords allow you to place your batteries in LiPo sacks for safe charging.

28 PARK PILOT [Summer 2018]

The next screen allows you to set up a check time for your batteries. This check

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