This is the Junsi iCharger 308DUO DC Battery Charger. The 308DUO uses advanced high current and high-performance synchronous buck-boost DC/DC converter technology to deliver 800W per channel and up to 1300W of total charging power in Synchronous Mode, combined with a maximum charge/discharge current of up to 30A per channel and two channels up to 50A in Synchronous Mode! Each channel supports 8s Lithium and NiZn batteries, with maximum 1.2A balance current using a unique "internal resistance correction" balance calculation and can measure not only the internal resistance of the battery pack, but also measure the internal resistance of each cell within the lithium battery. Additionally, the 308DUO also supports 1-20 cell NiMH/NiCd batteries and 1-15 cell Pb batteries.
A 2.8-inch LCD screen provides rich information including current, voltage, power, capacity, internal resistance, control status, time-consuming, temperature and more, and a 1A/5V USB charging port makes it convenient for the user to charge mobile phones and other portable USB devices. The 308DUO can save 64 pre-sets with SD Card data support, and also supports upgrading the hardware program through a USB port or SD card. The iCharger also supports “Logview” software and can display, plot and analyze the charge and discharge data of the battery.
Other features include anti-sparking protection, intelligent fan control, internal temperature protection, self-discharge, regenerative to input discharge, lithium battery extra expanding discharge, reverse polarity protection (input or output), input voltage/current, battery temperature, charging capacity, overrun time and maximum power protection functions to help keep your equipment safe.
- 800W of charging power per channel, 1300W when both channels are combined.
- Maximum charge/discharge current of up to 30A per channel, and two channels in Synchronous Mode up to 50A!
- Each channel supports 8s Lithium and NiZn batteries, 1-20s NiMH/NiCd batteries and 1-15s Pb batteries
- Unique "internal resistance correction" balance calculation
- 2.8-inch LCD screen displays current, voltage, power, capacity, internal resistance, control status, time-consuming, temperature and more
- 64 parameters sets can be saved
- Supports data import/export to SD card
- 1A/5V USB charging port to charge mobile phones and other portable USB devices
- Anti-sparking protection
- Intelligent fan control
- Internal temperature protection
- Multi-discharge: self-discharge, regenerative to input discharge, and lithium battery extra expanding discharge
- Measures internal resistance of a lithium battery pack, but also each cell within the lithium battery
- Reverse polarity (input or output), input voltage/current, battery temperature, charging capacity, overrun time and maximum power protection functions
- Supports upgrading the hardware program by USB port or SD card.
- Supports “Logview” software and can display, plot and analyze the charge and discharge data.
Input Voltage Range: 10.0—30.0VDC
Maximum Input Current Limit: <60A, CH1/2<40A
Maximum Charge/Discharge Current: 50A in sync mode, 30A in async mode
Maximum Charge Power Capacity: 1300W (Channel 800W @input > 23.5V)
Maximum Discharge Power Capacity: 130W (Channel 80W)
Maximum Regenerative Discharge Power Capacity: 1300W (Channel 800W)
Maximum Extra Discharge Power Capacity: 2100W (Channel 1050W @35V/30A)
Maximum Current Drain for Balancing: 2.4A in sync mode 1.2A in async Mode
USB Charging Port: 5V/1A（current-limiting protection 1.2A）
Net Weight: 0.91kg
Dimension: 171.2x117.8x58.8 ±0.5mm
Warranty Information: Please note for this particular unit, A-Main Hobbies does not handle the warranty service and will need to ship the unit to Junsi for repair or replacement. For this reason, we ask that you please allow 3-4 weeks for warranty service.
WARNING NOTE: This charger is not compatible with Traxxas iD equipped LiPo Batteries; only Traxxas iD chargers properly charge Traxxas iD LiPo Batteries. NEVER, UNDER ANY CIRCUMSTANCES, use this charger to charge a Traxxas iD equipped LiPo Battery.
This product was added to our catalog on September 13, 2013
30 amps and 800watts per side. Rediculous. If you're into RC and are an electric hobbiest, this is the right charger for you. I paired mine with a 1800watt custom made HP power supply.
EDIT : (Jan-31-2017) : AFter 2 years and nearly 700 charge cycles per channel. I can say this thing ROCKS Still rock solid. on 2.17 internal software with no issues. Charing 12S 4000mah at 16 amps per channel all day. Powered by two 12V HP DPS 1200's (24volts total)
EDIT #2 : (April 17/2018) STILL going strong, now charging 20 amps per channel, balancing quickly and effectivly after more than 1200 cycles per channel. Still on 2.17 software and running it powered by two 12V HP DPS 1200's (24volts total)
they need to come up with "their own" software for computer analyzing and ditch this logview. It's awful!!! half of it is not translated to english and it crashes all the time.
Now I'm starting to hear others online and at the local track say their 4010 duo's 1 of the outputs has failed on them.
We'll have to wait and see how it works out in a few months if I'd recommend this thing to friends. right now I'd sell it to anyone that would give me $180 for it.
**had to send it to buddy rc for warranty repair. sent me back a different used/repaired charger. not pleased. warranty on a $270 charger should not be here is one with scratches in exchange. buyer beware of buddy rc and junsi warranty.
it stinks because I did come to appreciate this charger's power being able to charge my 4s 6000mah batteries in 10 mins. but it seems hit or miss on quality. mine needed a new LCD. but they gave me a dirty pile of crap in return.
Shame it didn't even last 2 years. Channel 2 no longer balances.