The double-bay UM20 Battery Charging System from Nitecore is a versatile charger for lithium-ion and IMR batteries. An intelligent power management system automatically detects the number of batteries installed, evenly distributes charging power, and selects the appropriate charging current based on the specific needs of each battery installed. Besides charging batteries, this charger also provides output power from a standard USB port, enables data transfer throughput via the USB and micro-USB ports, and features an integrated USB cable winder. A LCD screen clearly displays the charging status and power level of each battery, and output selection. Reverse polarity and over-charge protection prevents damage to the batteries if one or both are installed incorrectly or left in the charger after charging is complete.

Compatible with Li-Ion and IMR Chemistry    Charges Sizes from RCR123 to 18650    LCD Screen Displays Charge Status    Two Independent Charging Circuits    USB Output Charging    Priority Mode for Manual Output Select    Supports Data Transfer via USB    Reverse Polarity Protection    Integrated USB Cable Winder    Constructed from Fire Retardant Material

• Two independent charging bays
• Separate spring-loaded sliders accept different battery sizes and ensures a secure connection
• When full current is available, it will simultaneously charge batteries and USB device
• When full current is not available, user can choose Battery or USB Priority modes
  • Battery Priority: Batteries are charged completely then switches to charge the device plugged into the USB port
  • USB Priority: When device plugged into USB port is fully charged, it will switch and charge the batteries second
  • Selectable according to user preference
• Charging programs
  • Detects battery number and current status of each
  • Automatically selects "constant current" or "constant voltage" depending on each battery requirement
  • Switches to "trickle charge" when batteries are full to maintain full charges
  • Over-charge protection cut current to prevent damage to batteries
  • Allows data transfer from external USB device to computer using the standard and micro-USB ports
  • Reverse polarity protection: Stops charging process if battery is installed incorrectly
  • LED screen displays battery power level and charging status
  • 18650
  • 18490
  • 18350
  • 17670
  • 17500
  • 16340 (RCR123)
  • 14500
  • 10440

  Related Questions and Answers

  Q: 1. What LiPO battery charging/storage bag will fit this hub while it's charging batteries? I'm not seeing one that looks like it is the correct size. Thanks

  A: The following case should work as the charging hub is 7". Common Sense RC Magnum XL LiPo Safe Charging/Storage Bag (9.5 x 7 x 2.25") https://www.bhphotovideo.com/c/product/1242110-REG/common_sense_rc_ls_magnumxl_magnum_xl_lipo_safe.html/specs

  Q: 2. Will it charge 18650 batteries?

  A: Yes, it does. The NiteCore i2 has a comprehensive list of batteries it supports. Please see the bottom of our overview for the full list.

  Q: 3. Does this hold 4 123 batteries? If not do you stock one that does?

  A: No, it only charges two 18650 cells.

  Q: 4. Can anyone who has ordered this charger, please tell me which cables are included? Does it include a 12V DC charging cable for use in a car?

  A: Only the AC cable is included.

  Q: 5. supports free voltage? or 110v only?

  A: Power input is via USB-C, thus it can be charged by any USB-C AC Adapter.

  Q: 6. the AC adapter that is in the box, is it a multi current or just for US to the wall outlet?

  A: The included power supply is multi-voltage.

  Q: 7. I tried using this charger to charge AA and AAA eneloop NiMH batteries. They get VERY hot. So hot that I stopped the charge because I was worried the batteries were being damaged. Has anyone else had this issue? Is this normal?

  A: This charger is for high amp dicharge batteries that have a low internal resistance ! Time to charge is 3 hours max.Eneloop charge in about 10 to 15 hours on a charger made for high IR at a much lower amp

  Q: 8. Will this battery power a recorder/mixer and 4-6 wireless receivers for a whole day of shooting (10-12 hours)?

  A: The battery life of the PSC Pelican LiFE Battery with Charging Port is dictated by the specific draw of the equipment connected to a corresponding battery distribution system on the sound cart. In general, one PSC LiFE battery should last for several hours and possibly a whole 10-12 hour shoot day, but it is best practice to have a spare on hand if needed.

  Q: 9. Will this charge three batteries simultaneously? or is it just lame sequential charging?

  A: The DJI FPV charging hub will provide sequential charging of batteries.

  Q: 10. Does this unit charge standard AA or AAA batteries

  A: This charger does not charge any AA or AAA batteries--it's only compatible with some sizes of lithium ion batteries.