Blackcell BU2 USB Battery Charger
The Blackcell BU4 USB Battery Charger is a diverse quad bay charger able to charge 33 different sized cells! That's including our trusty 18650, 20700, 21700, and 26650 cells. The BU4 charger comes with a microcomputer-controlled charging system just like its baby brothers, it automatically detects (NI-MH) batteries and Li-ion batteries as well. The implementation of the micro computer makes for a safer and more accurate charging process.
- Input Voltage: DC: USB-5V 2A
- Output Current: 2000mA (1) battery, 1000mA (2) Batteries, 500mA (4) Batteries
- Output USB: 5V/1000mA
- Output Voltage: 1.48v, 4.2±0.05V
- Constant voltage, cutoff current: ＜100mA
- External power supply standby current:＜ 15.0mA
- IMR/Li-ion: 20700, 21700 / 26650 / 22650 / 18650 / 18490 / 18350 / 17670 / 17500 / 16340(RCR123) / 14500 / 10440
Note: Batteries are sold separately.