Availability: 1 In Stock
Sku: JNS-X12

Clicke here to Download iCharger X12 Manual.

The iCharger X12 is a new Junsi product launched in fall of 2020. This palm-sized charger is packed with an unbelievable 1100W 30A of power packed into a miniature frame for up to 12S LiPo batteries, replete with features only seen in advanced chargers. The charger shares the accessible and easy-to-understand user interface found in the popular Duo iChargers. Buddy RC has been a major iCharger distributor since 2009, and our unparalleled service to iCharger users is well-known in the RC hobby community.

Special Features

1. The X12 supports up to 12s LiPo, Lilo, LiFe, LiHV, LTO, NiZn batteries with a maximum 2A balance current, and it utilizes a unique balance calculation of internal resistance correction. 

2. Intelligent fan control. The internal temperature sensor detects internal temperature, allowing the charger to control fan speed.

3. Internal temperature protection. When the internal temperature exceeds the power reduce temperature, the output power is automatically reduced, and the charger will shut down when temperature exceeds the shut-down temperature.

4. This charger can save 32 parameter settings and support the data import/export to SD Card.

5. A 2.4" IPS LCD Screen provides rich information including current, voltage, power, capacity, internal resistance, control status, time consuming and temperature, etc.

6. Multi discharge features: self discharge, regenerative to input discharge, and lithium battery extra expanding discharge.

7. Supports measurement for internal resistance of batteries both offline and online. Can measure not only the internal resistance of the entire battery pack but also the internal resistance of each cell within the lithium battery.

8. The X12 has protection for reverse polarity, input oor output. 

9. Supports software updates via USB port or SD card. The X12 also supports the “Junsi Console” software, which displays, plots, and analyzes the charge and discharge data.
One-year manufacturer warranty handled by Buddy RC, a major iCharger distributor since 2009.


Display: 2.4 " IPS LCD (320×240)
Net weight: 230g
Dimensions: 112 × 64× 37 ± 0.5 mm

Input voltage range: 11-53VDC
Maximum input current limit: <35A
Maximum charge/discharge current: 30A
Max. output voltage/current for digital power supply: 50V/30A
Maximum charge power capacity: 1100W
Maximum discharge power capacity: 50W built in
Maximum regenerative discharge power capacity: 1100W
Maximum extra discharge power capacity: 1500W@50V/40A
Maximum current drain for balancing: >2.0A

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 X12 1100W 30A 12S Balance Battery Charger

Customer Reviews

Based on 6 reviews
Susan S.
ICHARGER X12 from BuddyRc

I received the charger quickly as always from BuddyRC. I am a return customer and rely heavily on BuddyRC for several items such as motors. The Icharger works as described and appears to be a next level intelligent unit. This will be supporting a giant scale airplane build with a custom 12s battery. Looking really good so far.

Gordon L.
Absurdly powerful

I haven't tested this charger to its limits, since they're so absurdly high... but I have pushed significant current and watts through it, and it doesn't even break a sweat. I haven't yet had the fan come on; temperatures stay low. The interface is a bit clunky with the single dial, but you get used to it. Incredible piece of technology.

randy c.
Cool little unit

Amazingly small for its rated output (which I have not tested the limits of, yet). But very cool. Lots of battery types supported out of the box, good programmability, lots and lots of options. Reports pack level, plus individual cell voltages, mAh, and IR. Looks like it will be a great, much less expensive companion to my PL8.

Corey M.
For my application, it's not quite good enough, and it's just a stupid software problem

There is an industry which needs chargers which can measure the capacity of cells in the hundreds of AH.

Whole industry looking, and not one vendor is changing their code to count past 100Ah...

However, since most chargers stop at 50Ah, I'll give iCharger a 4 out of 5.

One software change, thousands of new customers... It's just changing a number.

Aaron P.
Excellent charger

Arrived quick and is everything I expected and more.

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