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The iCharger 306B is a multi-function charging and balancing unit for up to 6s lithium polymer and up to 25 NiMH/NiCD cells. The iCharger 306B can charge at up 30 amps with a maximum output power of 1000W (at 23V) or 500W (at 12V).

The iCharger range of battery chargers from Junsi are made in China and are well known for their accurate balance and internal resistance measurement, giving you more power over your batteries and allowing unrivalled monitoring of your packs through their support for LogView software.

Most surprising is the dimensions of the iCharger 306B. The very efficient internal DC/DC conversion results in a unit measuring only 143×123x46mm (5.6×4.8×1.8") and the light-weight of only 750g makes the iCharger 306B a very portable and worthwhile addition to your worktop and a great basis for a portable charging station to take to the field.

The iCharger 306B has integrated JST-XH sockets for 2s, 3s, 4s, 5s and 6s Li-Po batteries as well as a temperature sensor port. Since most popular battery packs feature JST-XH type balance connectors, this means a separate balance board is in most cases not required to charge and balance your batteries with the iCharger 306B, which makes the 306B great value for money.

In the box: -

  • iCharger 306B
  • Integrated leads with 4mm banana plugs for connection to power source
  • Crocodile clips for adapting 4mm banana plugs where required
  • USB cable
  • Crocodile type charge lead
  • Temperature sensor
  • Software CD
  • Stick-on rubber feet

Not included: -

Made in China.

Technical Details for iCharger 306B

Input Voltage Range (DC)4.5 - 38.0V DC
Mains OperableNo
Dimensions (mm)143x123x46
Max. Charge Current30.0A
Max. Discharge Current30.0A
Max. Charge Power (W)1000W @ 23V
Max. Discharge Power (W)80W
Balancing Current0.5A
Lithium cell count (LiPo, LiIo, LiFe)1-6
NiCd/NiMH cell count1-25
Pb cell count1-18 (2-36V)
Weight750.0g (26.5oz.)

Incredible Charger
5/5 stars
By D.Klermm
Last week I ordered this Charger at electricwingman, because even with the cost of shipment this charger ist about 30€ (~25GBP) cheaper than in Germany. I ordered it on Tuesday evening an it arrived on Friday midday.

I did my first charges with this 306b powered by a bladecenter power supply an I am chuffed to bits. A 3s6p 2200 mAh was charged in parallel with 2C at about 26,4A an I finished charging after about 30 min. The balancer is quiete powerfull (balancing in CV-Mode).

This really changes the way I charge. I am now able to fly longer with my helicopter than it takes to charge the lipos.

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