charging for 3.7V Li-ion battery :10440~26650

Four Slots USB Li-ion Charger - U5

Dlyfull's 4-slot smart USB charger features independent channels, high-current output, and intelligent input adaptation. With long/short battery recognition, it delivers efficient and versatile charging:

1. 4-slot charger for 3.6/3.7V Li-ion batteries
2. Supports over 18 battery sizes (10340–26650)
3. Independent channels with auto cut-off
4. Smart TC-CC-CV charging
5. Slot 1&4 up to 2.0A; Slot 2&3 up to 1.0A
6. Intelligent input power adaptation
7. Long/short battery recognition for optimal current
8. Low-voltage activation (1.95–2.9V)
9. Bad battery identification (<1.95V)
10. Red/Green LED with alarm

Inquiry

Application Scenarios

Specification

Model NameU5
InputDC 5V/4A/2A/1A (Type-C, adaptive)
Output

DC 4.20V ±0.05V
Slot 1 & 4: 2.0A max (1.0A when Slot 2/3 occupied)
Slot 2 & 3: 1.0A max (0.5A optional)

chargeable batteries

3.6/3.7V Li-ion: 10340, 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 22700, 26500, 26650

Functions

• Precise PWM-controlled three-stage (TC-CC-CV) charging
• Independent 4-slot charging with auto cut-off
• Intelligent input power adaptation (5V/4A/2A/1A)
• Long/short battery recognition and current auto-selection
• Low-voltage activation (1.95–2.9V) and 0V activation (for protected batteries)
• Bad battery detection (<1.95V ±0.2V identified as faulty)
• Red/Green dual-color LED indicators with alarm (flashing red)
• Self-test on power‑up (red→green→off)

Smart Protections

• Overcharge protection (precise voltage cut-off)
• Reverse-polarity protection (won't damage charger)
• Short-circuit protection
• Over-temperature protection
• Damp heat, vibration, and drop test passed
• Designed to meet CE, ROHS, FCC standards