Availability: 10 In Stock
Sku: JNS-4010Duo

This charger MUST be used with a stable power supply. Avoid use with an automobile or multiple server power supplies in a series. 
These chargers will arrive with a very thin but effective protective cover on the screen. If your screen appears scratched upon arrival, use either a fingernail or a precision knife to carefully peel off the protective layer from the side of the screen. 

 iCharger 4010 Duo manual.


Why choose iCharger?
With the best power-to-cost ratio on the market, iChargers are immensely powerful but also compact and convenient. iChargers feature accurate cutoff voltage, rapid balancing speed, and compatibility with almost all types of batteries used in RC hobbies. Various versatile functions and extra features are also available, providing an adaptable and flexible platform for all your hobby needs. They're also easier to operate than our competitors' products, further enhanced by our excellent technical support. It should come as no surprise, then, that iChargers have become a favorite among hardcore RC hobbyists over the years.

Why buy from Buddy RC?
As an authorized iCharger USA distributor and one of the first American iCharger dealers, having served iCharger users since 2009, we offer the best prices and the most reliable services available. While our prices may appear to be the same or higher than other dealers at first glance, we offer various other types of discounts such as free adapter boards and ParaBoards as well as free shipping to customers in the USA. We provide excellent customer service and technical support over phone and e-mail. Because we also personally love and use iChargers all the time, we thoroughly understand the workings of the chargers and can easily assist you with any questions or concerns. The warranty is non-transferable and is handled by Buddy RC in Columbus, Ohio, USA. You'll never have to hassle with overseas manufacturers or dealers. 

Maximum charge power: 1400W per channel, or 2000W in synchronous mode
Charge current: 50mA-40A per channel, or up to 70A in synchronous mode
Discharge power: 130W per channel, or 200W in synchronous mode
Maximum regenerative discharge: 1400W per channel, or 2000W in synchronous mode
Maximum external discharge power capacity: 1600W @ 40V/40A, or 3200W in synchronous mode
Balance bleeding current: 1.2A per channel, or 2.4A in synchronous mode
Voltage readout resolution: 1mV (0.001V)
Internal resistance readout resolution: 0.1 Ohm
Balance accuracy: 10mV
Input voltage range: 9-50V DC
Maximum Input current: 65A
Maximum LiPo/LiIo/LiFe(A123): 10S per channel and in synchronous mode
Maxiumum NiCd/NiMH battery cell count: 25 cells per channel
Maximum Pb battery cell count: 18 cells (36V) per channel
PC Connectivity: USB port
Dimensions: 210 x 140 x 80 mm
Net Weight: 1470g

Extra functions: 

  • Battery internal resistance measurements
  • Servo test
  • Pulse test
  • Store and read data from micro SD (TF) cards

One-year manufacturer warranty handled by Buddy RC, a major iCharger distributor since 2009.

Packaging Included:

1 X iCharger 4010 Duo Charger
2 X Balance boards
2 X Balance cable
2 X Charge leads
1 X Program cable

Orders are shipped from Columbus, the capital city of Ohio, USA.

An order placed before 2:00pm Eastern Standard Time will be shipped the same working day.

We ship on Monday-Friday by US postal service (USPS) and UPS, and Saturday morning by USPS if a local post office is open. Any order placed on Saturday morning may or may not be shipped the same day. Orders placed on Sunday and US holidays will be shipped the next working day.


Retail orders above $80 may be eligible for free shipping, including contiguous United States, Alaska, Guam, Hawaii, Puerto Rico, and APO addresses. We will use either USPS or UPS that most packages can be delivered in 3-5 working days, but not guaranteed. However, for packages contain large and heavy items, such as power supply, we may use parcel post service or UPS Surepost that may take up to 7 working days to be delivered.

USPS First Class Mail and Priority Mail, Express Mail, and UPS services can be used for domestic addresses. Tracking number and delivery confirmation will be provided to the customer when they are available. If you have not received a tracking information E-mail, please log into your account and click the "view order" link, then click "Track your order" link to find out the tracking number and ship method.

USPS Priority Mail is typically delivered in 3 working days. But very occasionally a priority mail package may be delayed for several days in the mailing system. If delivery time is extremely critical to your order, we would recommend Priority Mail Express or other couriers.

Domestic First Class Mail is only 1-2 days slower than Priority Mail in delivery. We suggest domestic customers choose First Class Mail for an order under 15 oz to save shipping cost.

Real shipping cost is calculated according to package weight and distance, and can be found in the checkout page after delivery address is specified in the fields.

Any order of $200 and above requires addressee's signature confirmation upon receipt of the package. Please contact us in advance or leave a comment in the message box if you want to waive signature confirmation.

We always check the legality of potential fraudulent orders. This procedure may lead to 1-2 working days delay in shipping in some rare cases.

We do not ship products to shipping forwarding companies. Any order shows this kind of address will be cancelled and refunded without notification.


DHL, DHL Express, US Postal Service (USPS) First Class Mail, Priority Mail, and Express Mail (EMS), and UPS services can be selected for international addresses. Shipping cost is calculated according to package weight and distance, and can be found in the check out process. A package usually takes around 7-10 days to be delivered, or occasionally up to 45 days depending on the processing speed in your country, especially in some countries such as Brazil and Russia.

USPS First Class Mail is a budget shipping method. As soon as a First Class Mail package left USPS Chicago hub there will be no tracking information available. If you need detailed tracking information and timely delivery please do not use this shipping method.

Presently we cannot ship lithium batteries internationally by US Post Service or any other air shipping method. Please select UPS Ground if your order contains LiPo or LiFe battery.

We do not ship products to shipping forwarding companies. Any order shows this kind of address will be cancelled and refunded without notification.

iCharger 4010 Duo 2000W 40A 10S Dual Port Charger

Customer Reviews

Based on 13 reviews
Basil Y.
iCharger 4010 - looks to be a good quality charger

Just got the ICharger Up with the 24volt Buddy RC Power supply. The 5mm Bullet connectors for the power supply connection were missing so I used ones out of the blue EC5 connector that was new. Charged one battery up pretty fast to try out. It has good features that let you know the condition of the battery. Charges and Maintaines any type of RC battery made. On the expensive side but it's the best!!

Roy A.

Great product. I have several I charges. Excellent product.

I4010 charger

Works great, speedy & great service.

Joshua K.
Great Products, Better Support!

Getting back into the hobby, electric power is all new to me, and more confusing is the power requirements.
The staff helped me along to make the best choice for chargers, power supplies and everything else.
They were VERY patient with me and answered all my questions no matter how dumb. Thanks again! Your team is the best!

Rick W.
Looking great so far!

Been using an iCharger 3010B for awhile, but am getting back to needing to charge 10S batteries... thus the iCharger 4010 Duo. Haven't used it a lot yet, but so far it's looking / acting solid.
- Easy to set up and use.
- Informative during charging.
- Love seeing the IR of my cells on the display.

Looking forward to more great experience with it !

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