ALLNET 4duino 5V 1A Li-Ion Battery Micro USB Charger with Protection Module (ALL_OY_3404)

The ALLNET 4duino 5V 1A Li-Ion Battery Micro USB Charger with Protection Module (ALL_OY_3404) is a compact and reliable charging solution for single-cell lithium-ion and lithium-polymer batteries. Featuring the TP4056 charger IC and DW01A protection IC, it provides constant current/constant voltage charging with overcharge, over-discharge, overcurrent, and short circuit protection. Ideal for DIY projects, Arduino-based systems, and portable electronics.

Advantages

Integrated protection ensures safe charging and extends battery life. Micro USB input allows easy connection to standard USB power sources. LED indicators show charging status (red) and full charge (blue/green). Compact design with solder pads for easy integration.

Suitable for

• DIY battery charging projects
• Arduino and 4duino boards
• Portable electronic devices
• Rechargeable battery packs

Key specifications

• Charger IC: TP4056
• Protection IC: DW01A
• Input Voltage: 4.5V - 5.5V DC
• Input Interface: Micro USB
• Max Charging Current: 1A
• Battery Type: Single Cell Li-Ion / Li-Po (3.7V nominal)
• Full Charge Voltage: 4.2V ± 1%
• Overcharge Protection: 4.28V ± 0.05V
• Over-discharge Protection: 2.5V ± 0.1V
• Overcurrent Protection: 3A (approx.)
• Short Circuit Protection: Yes
• Charging Status: Red LED (charging), Blue/Green LED (charged)
• Operating Temperature: -10°C to +85°C
• Charger Type: Linear (CC/CV)
• Output Terminals: Solder Pads (B+, B-, OUT+, OUT-)
• Quiescent Current: Approx. 10mA

Recommendations

Use with a regulated 5V USB power supply. Ensure correct polarity when connecting battery. Not suitable for multi-cell batteries or reverse polarity protection.