Vapcell U2 smart charger / Charge current per cell 2A.
Vapcell U2 2A USB Smart Mini Charger for Charging Li-ion/Lifepo4/Ni-MH/Ni-Cd Batteries AAA AAAA C D

Vapcell U2 is a universal 2A smart charger with charging current for almost all cylindrical rechargeable batteries, eliminating the need to have multiple chargers. U2 automatically detects Li-ion, Ni-MH and Ni-CD, and through manual selection is also capable of charging LiFePO4 batteries, the intelligent charging circuit selects the optimal charging mode (CC, CV and dV/dt) for a given battery and each of the two connectors to charge with U2 microcomputer, then monitors and charges the battery independently, in addition, clear charging progress with four LEDs.

Vapcell U2: the most advanced, economical and fastest fully automatic charger in the world. It's as simple as insert, detect and charge.

Function description

1.Mode button:
Click to select the battery type (Li-ion 3.7V/Li-ion 3.8V/IFR 3.2V/Ni-MH 1.2V) when inserting the battery. It will start charging the battery after fixing the battery type. Please note that it automatically detects Li-Ion and Ni-MH, no need to select manually. But it can't automatically detect li-ion 3.7V/li-ion 3.8V/IFR 3.2V battery, if you don't choose manual control, the system will choose li-ion 3 .7V default. Then fully charge the voltage to 4.2 V. Therefore, be sure to select the type of battery!

2. Current button:
Set the battery type, then select the charging current 0.5A,1A and 2A.

3. LED indicator
Power on, connect the power wire to the charger, all LED indicators will be on, after 1 second the LED indicator will be off except the 0.5A current indicator
When the battery is inserted to the charger, the Li-ion 3.7V or Metal Hydride or Nickel LED indicators are flashing, please press the MODE button to set the correct battery type. Then set the correct battery current, it will start charging the battery after 5 seconds, and the LED indicator shows the charging status.
If the battery is upside down while charging, all four LEDs will display and flicker to remind you of the correct positive and negative terminals of the battery.

4. Press MODE button to show Battery Type (5 seconds) while charging and return to show charging status
It can show the remaining power of the battery if you put the battery into the charger (without connecting to the charging power)

5.USB output indicator
Cut off the input signal strength, put the lithium-ion battery into the second generation charger slot, and display the battery percentage by four LED lights, which is 25%, 50%, 75%, 100%. Then connect the USB output line to various devices to act as a mobile power supply to charge the device. Please note that only the second connector of the charger has a USB output function.

Applicable (battery diameter: 10-26mm, length: 34-75mm)
Li-ion/Lifepo4:
10340,10440,14500,16340,16650,17500,17650,17670,
18350,18490,18500,18650,20700,21700,22650,26500,26650
Ni-mh/Ni-Cd:
AAAA,AAA,SC,C,D

Peculiarities:

*Easy to use, 2A smart charger
*USB output for charging mobile phone
* The top surface has a top button type function to contact the recessed battery
*Sliding groove is long enough for 21700,20700 size including button top or 20700/21700 PCB
* It is compatible with all types of rechargeable batteries.
*Can charge two batteries and USB devices at the same time.
* Three charging current parameters (0.5A/1.0A/2.0A)
* Four LED indicators show the charging status (25%, 50%, 75%, 100%), and also shows the battery type if the battery is inserted (1.2V NiMH or NiMH 3.2V IFR, 3.7 V li-ion, 3.8 V li-ion)
* It automatically detects Li-ion, Ni-MH, but, you need to adjust the charging mode for 3.2V IFR(lifepo4) and 3.8V Li-ion battery.
*Charging protection, overload protection and polar reverse protection. In addition, it can detect a broken battery.
* FCC CE ROHS certified