Manufacturer - JUNSI
Model - 4010 DUO
Type - MULTI CHEMISTRY BATTERY CHARGER
Condition - NEW, IN FACTORY PACKAGING
Part Number - 4010DUO
Retail Price - $399.99 + SHIPPING
Terms - WHAT YOU SEE IS WHAT YOU GET

Details -
This is the Junsi iCharger 4010Duo Dual Port Charger as shown. 

The 4010DUO uses advanced high current and high-performance synchronous buck-boost DC/DC converter technology to deliver up to 2000W of charging power, with a maximum charge/discharge current of up to 40A per channel and two channels in Synchronous Mode up to 70A! Each channel supports 10S lithium batteries, while the impressive TFT LCD screen provides critical battery information including current, voltage, power, capacity, internal resistance, control status, time-consuming, temperature, and more. 64 parameters sets can be saved without repeat settings, simply import/export via an SD card. The 4010DUO applies a 1.2A balance current, and uses a unique "internal resistance correction" balance calculation, and the discharge features include discharge-self, regenerative to input discharge, regenerative to channel discharge, and lithium battery extra expanding discharge. Plus, the 4010DUO can measure not only the internal resistance of the entire battery pack, but also measure the internal resistance of the individual cells within the battery.

Internal temperature protection keeps the charger operating safely and efficiently. When the internal temperature exceeds the threshold, the output power is automatically reduced and the charger will shut down when the temperature exceeds the cut-temperature. The intelligent fan control senses the internal temperature and uses an internal temperature sensor to control the fan speed. The 4010DUO has protection for reversed polarity (input or output), input voltage/current, battery temperature, charging capacity, time overrun, maximum power and more, while the multi-discharge features include discharge-self, regenerative to input discharge, regenerative to channel discharge, and lithium battery extra expanding discharge. The hardware programming can be updated through the USB port. The 4010DUO also supports “Logview” software to display, plot and analyze the charge and discharge data.

Features -
1400W of charging power per channel, 2000W when both channels are combined
Maximum charge current of up to 40A in Asyn. Mode, 70A in Sync Mode
Maximum discharge current of 130W per channel, 200W when both channels are combined
Each channel supports 10S lithium batteries
TFT LCD screen displays current, voltage, power, capacity, internal resistance, control status, time-consuming, temperature and more
64 parameter sets can be saved
Measures internal resistance of the battery pack, and also the per-cell internal resistance 
1.2A balance current, and uses a unique "internal resistance correction" balance calculation 
Internal temperature protection
Intelligent fan control
Multi-discharge features: discharge-self, regenerative to input discharge, regenerative to channel discharge, and lithium battery extra expanding discharge.
Supports upgrading the hardware program by USB port
Supports “Logview” software to display, plot and analyze charge and discharge data

Warning -
This charger MUST be used with a stable power supply, it is not recommended to be used with an automobile as a power source, or using multiple server power supplies in series as a power source. Not using an adequate power supply will void this units warranty.

Specifications:
Input Voltage Range: 9.0—50.0VDC
Maximum Input Current Limit: <65A
Maximum Charge/Discharge Current: 70A@in sync mode / 40A in async mode
Maximum Charge Power Capacity: 2000W (Channel 1400W @input > 23.5V)
Maximum Discharge Power Capacity: 200W (Channel 130W)
Maximum Regenerative Discharge Power Capacity: 2000W (Channel 1400W)
Maximum Extra Discharge Power Capacity: 3200W (Channel 1600W @40V/40A)
Maximum Current Drain for Balancing: 2.4A in sync mode, 1.2A in async mode
Net Weight: 1.47kg
Dimension: 210.0×140.1×80.2mm ±0.5mm

Why select iCharger
Best power to cost rate
Powerful chargers in compact sizes.
Accurate cut off voltage.
Fast balance speed.
Works with almost all types of batteries used in RC hobbies.
Versatile functions and extra features available.
Easy to operate than competitors' products.
Excellent techincal support.
Very popular among hardcore RC hobbyists.

Specifications
Input voltage range: 10.0—30.0VDC
Maximum input current limit: <60A, CH1/2<47A
Maximum charge/discharge current: 70A Syn. Mode 40A Asyn. Mode
Maximum charge power capacity: 1400W (Channel 1000W input > 23.5V)
Maximum discharge power capacity: 140W (Channel 80W)
Maximum regenerative discharge power capacity: 1400W (Channel 1000W)
Maximum extra discharge power capacity: 2000W (Channel 1000W 25V/40A)
Maximum current drain for balancing: 2.4A Syn. Mode 1.2A Asyn. Mode
USB charging port: 5V/1A(current-limiting protection 1.2A)
PC Connectivity: USB port
Dimensions: 171x118x59 mm
Net Weight: 910g

Warranty Information:
Please note for this particular unit, Xtreme does not handle the warranty service and will need to ship the unit to manufacturer for repair or replacement. Please allow 3-4 weeks for warranty service.