ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)

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ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
Price: $189.99
Discontinued Online
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.

This is the ProTek R/C Prodigy 620 DUO DC Battery Charger. There is no such thing as too much power and the Prodigy 620 DUO is an impressive charger that has the power you need to get your batteries charged quickly, with the features, reliability, and customer support you have come to expect from ProTek R/C! The Prodigy 620 DUO features two independent 400 Watt channels, each with its own independent control panel, LCD display, balance ports and sensor ports. Plus, each channel has its own blue backlit LCD display and the white characters to provide clear visibility in any environment.

Additionally, the Prodigy 620 DUO can charge LiPo, LiFe, or Li-Ion batteries up to 6S, 15-cell NiCd or NiMH batteries, and lead-acid batteries up to 20V. With the ability to fast charge, balance charge, and storage charge lithium cells, you can easily tailor the charge process to suit your needs, while individual cell voltage can be monitored during balance mode charging, allowing you to identify an imbalance in the cells and spot a weak cell before it becomes a problem. Other features include a dual-fan cooling system that utilizes a push-pull design that will keep the charger cool, even when working at maximum capacity. Plus it's backed by ProTek R/C's legendary customer support, so no matter what your charging needs may be, the 620 DUO has you covered.


NOTE: To take advantage of the Prodigy 620 DUO's full power capability, the power source should be 15V-18V DC, and output power should be capable of 1000W or higher. A low power, low quality DC power source could potentially damage your Prodigy 620 DUO charger. We recommend the ProTek R/C "Super Pro 1000" DC power supply PTK-PRO-1000W-SP.


  • Optimized Operating Software: An optimized “Auto” function controls the charge rate during the charging and discharging process. This will help to prevent damage due to user error.  If there is a malfunction, the circuit will be disconnected automatically and an alarm will sound. All operating modes are controlled through a two-way communication process between the charger and the battery in order to maintain maximum safety, and all settings can be configured by the user.
  • Internal Lithium Battery Balancer: Each channel features an individual cell voltage balancer. An external balancer is not required for balance charging.
  • Individual Cell Discharge Balancing: When discharging, each cell is monitored and balanced individually. If the voltage of any cell is abnormal, an error message will be displayed and the process will be terminated.
  • Lithium Battery Adaptability: Compatible with the three most common Lithium battery types: LiPo, Li-ion, and LiFe.
  • Multiple Lithium Battery Charge Modes: Programming allows Fast Charge, Balance Charge or Storage Charge Modes for LiPo, Li-ion, and LiFe batteries.
    • “Fast” Charge Mode: Reduces charging time, but does not balance the cells and charges the battery to approximately 90% capacity.
    • “Balance” Charge Mode: Monitors individual cell voltage, keeps the cells within an acceptable voltage range and charges the pack to peak capacity.
    • “Storage” Charge Mode: Used for long-term battery storage. Adjusts the voltage level so the battery will not be damaged during storage.
  • Maximum Safety Through Delta-Peak Technology: The automatic charge termination program uses Delta-Peak voltage detection. When the battery's voltage exceeds the threshold, the process will be terminated automatically.
  • Automatic Charging Current Limit: The upper limit of the charge current can be set for charging NiCd or NiMH batteries. This is useful for NiMH batteries with low resistance and capacity in the 'AUTO' charging mode.
  • Capacity Limit: The charging capacity is always calculated as the charging current multiplied by time. If the charging capacity exceeds the limit, the process will be terminated automatically when the charger reaches the maximum value.
  • Temperature Threshold: The batteries internal chemical reaction can cause the temperature of the battery to rise during charging. If the temperature limit is reached, the charging process will be terminated. This function is only available when using the temperature probe and its parameters are user-specified.
  • Processing Time Limit: The user can set the maximum charging time. If the charging time exceeds the limit, the process will be terminated automatically.
  • 10 User Presets: Customize 10 individual presets, each with different parameters set for a particular battery type. This allows the user to "call up" the settings for a particular battery without additional programming needed.
  • Cyclic Charging/Discharging: Batteries can be set Charge/Discharge or Discharge/Charge for up to 5 cycles.

Operating Voltage Range: 12-18 Volts DC
Max Charge Power: 2x400 watts
Max Discharge Power: 2x25 watts
Charge Current Range: 0.1-20.0A
Discharge Current Range: 0.1-5.0A
Current Drain for Balancing LiPo/Li-ion/LiFe: 300mA/cell
LiPo/Li-ion/LiFe Cell Count: 1-6 cells
NiCd/NiMH Cell Count: 1-15 cells
Pb Battery Voltage: 2V-20V
Dimension: 200x140x55mm

1) DO NOT leave the battery in your model when charging
2) DO NOT leave unattended when charging
3) ALWAYS balance charge the battery
4) ALWAYS use a LiPo charging bag
5) YOU MUST use a Li-Poly specific charger to charge the pack (NiMH or NiCD only chargers WILL NOT WORK!)
6) YOU MUST not over discharge the Li-Poly battery pack
7) READ & UNDERSTAND the instructions carefully before operating this battery


  • (1) Prodigy 620 DUO Charger
  • (2) JST-XH Balancing Adapter
  • (1) Alligator Clip Charging Cable
  • (2) 18AWG Wire Charging Cable
  • (2) Plug-in Battery Clamps

Click Here For Warranty Information

ProTek R/C is an AMain Sports & Hobbies brand.

This product was added to our catalog on April 26, 2012

Verified Owner
Friday, Dec 14 2012 (about 10 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
This is a wonderful charger, it does make a bit of noise when running, but considering its capable of dumping 20 Amps into each battery it certainly needs to keep cool. The build quality is exceptional and feels like a solid block of aluminum in the hand. Compared to an old Venom battery charger the quality of ProTek stuff becomes quite apparent. The charger only comes with blank charging leads with bare connections for attaching your plug of preference, I picked up some ProTek "lead squids" to use with it and those too work great and are of exceptional build quality. If you plan to use this charger at home you will likely need to pick up an AC -> DC power supply, and a pretty hefty one at that to power it. Out of the box this charger is DC input only, so you can hook it up to your car battery or if you happen to have a pile of deep cycle batteries lying around (like I do) you can use those to power it.

If you are looking for a powerful dual independent channel battery charger look no further, this is it!
Verified Owner
Saturday, Aug 4 2012 (about 11 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
I second that. I have been using it for a few weeks now and It's a great charger, intuitive, efficient and accurate. The manual is well written, despite a couple of mistakes in it... Needs a beefy power supply to take full advantage of it. The only thing I'm not totally satisfied is the puny 18awg charge leads supplied. As the balance boards cables (6s to 6s), the charge leads are also too small, making it a bit tricky to use a Lipo charging bag when charging two batteries. Protek sells 20cm balance cables that should be standard.
Verified Owner
Tuesday, Mar 18 2014 (about 9 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
Very easy charger to use. Very nice having 2 separate screens instead of having to toggle between them. Specs make this a beast of a charger.. Must have charger..
Matt Gosch
Tuesday, Feb 12 2013 (about 10 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
I love my Prodigy 620 Duo from Protek. The ability to charge and monitor two batteries at once is amazing. Having one charger instead of two makes packing a lot easier as well, plus that blue aluminum case looks sharp!
chad bradley
Friday, Feb 1 2013 (about 10 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
Love the high amp output! Easy to use and navigate through the many features. Storage mode is a very useful feature when you plan on setting a side your LiPo packs for a while, it ensures the perfect voltage to store LiPo batteries at.
Austin Blair
Friday, Feb 1 2013 (about 10 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
I've used this charger from when it was first released. It's very easy to navigate through the functions and get to your settings. I use this charger at least 3-5 times a week, either at the track or playing around in front of my house and have never had a problem. You cannot beat the quality.
Saturday, May 19 2012 (about 11 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
Easy to use, easy to read! A very good charger especially when matched with the Protek power supply!
Wednesday, Apr 30 2014 (about 9 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
I don't understand why the super pro 1000 is recommended when the charger can only handle up to 18v. The super pro 1000 @ 18v is maybe what.. 700w?
Verified Owner
Wednesday, Dec 4 2013 (about 10 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
This charger is amazing! The fan does a great job and the options are endless. I would highly recommend it to anyone that needs a high powered charger like this. I would also recommend getting parallel charging boards for each port. You will need to solder on your own connectors. The cell balancing is also spot on and the features while the batter is charging is also good.
Joshua Mooney
Saturday, Apr 20 2013 (about 10 years ago)
ProTek RC "Prodigy 620 DUO" LiPo/LiFe/NiMH DC Battery Charger (6S/20A/400W x 2)
I do not own this particular product and I will say that everything I have owner from Protek has been great quality and done precisely what I bought it for. But I feel for the near $200 price range this should have an A/C option built in. And with the Hitec X4 out now, there is no reason for the money it should also be a quad charger.... Just saying.