Type-C USB 5V 3A 18650 Li-ion Battery Charging Board Module
Type-C USB 5V 3A 18650 Li-ion Battery Charging Board Module
Type-C USB 5V 3A 18650 Li-ion Battery Charging Board Module (IP2312)
Upgrade your DIY electronics projects with this compact, high-efficiency Type-C USB 3.7V 18650 Lithium Battery Charging Board. Powered by the IP2312 chip, this module delivers up to 3A charging current with an impressive conversion efficiency of up to 95% — perfect for makers, hobbyists, and engineers who demand reliable battery charging in a tiny footprint.
Made in Mainland China.
Key Features
- Full CC/CV Charging Mode: Automatically switches between trickle, constant current (CC), and constant voltage (CV) modes for safe and optimal charging at every stage.
- Trickle Charge Protection: When battery voltage drops below 3V, the module enters trickle charge mode at 100mA to gently revive deeply discharged cells.
- Constant Current Mode: Charges at the set current once the battery exceeds 3V, maximising charging speed.
- Constant Voltage Mode: Activates when voltage approaches 4.2V; automatically stops charging and checks voltage every 4 minutes to prevent overcharging.
- Recharge Detection: Automatically resumes charging if battery voltage falls below 4.1V after a full charge cycle.
- Adjustable Charging Current: Default 3A; remove resistor for 2A; replace with a 135kΩ resistor for 1A — easy to customise for your application.
- LED Indicators: Red LED = charging in progress; Blue LED = battery fully charged.
- Compact PCB: 31 × 15mm board with Type-C socket protruding ~1mm — ideal for space-constrained builds.
Specifications
| Model | AILAVI-0503V1 |
| Main Control Chip | IP2312 |
| Input Voltage | 4.5 – 5.5V (via Type-C USB) |
| Charge Cut-off Voltage | 4.2V |
| Default Charging Current | 3A (adjustable to 2A or 1A) |
| Conversion Efficiency | 93% @ 3A | 94% @ 2A | 95% @ 1A |
| PCB Size | 31 × 15mm |
| Battery Compatibility | 3.7V 18650 Lithium Li-ion |
| Battery Protection | Not included (no over-discharge/short-circuit protection) |
What's in the Box
- 1 × IP2312 Type-C Charging Board Module
Note: Battery not included. Colors may vary slightly due to monitor settings. Please allow ±1–3cm measurement deviation.
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Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: Is this 18650 battery charging board compatible with all 3.7V lithium-ion batteries?
A: Yes — the IP2312 charging module is designed specifically for 3.7V lithium-ion (Li-ion) cells, including standard 18650 batteries. It charges up to a 4.2V cut-off voltage, which is the standard full-charge threshold for most 18650 Li-ion cells. Always verify your battery's specifications before use.
Q: Does this charging board include battery over-discharge or short-circuit protection?
A: No. This module does not include battery protection circuitry (no over-discharge, over-voltage, or short-circuit protection). If your project requires protection features, you will need to add a separate battery protection board (BMS) in your circuit design.
Q: How do I adjust the charging current on this module?
A: The board ships set to a default 3A charging current. To reduce the current to 2A, simply remove the onboard resistor. For 1A charging, replace the resistor with a 135kΩ resistor. This makes it easy to fine-tune the charge rate to suit your battery capacity and application requirements.
Q: What does the USB Type-C input requirement mean for this module?
A: The board accepts 4.5–5.5V input via its Type-C USB port, meaning a standard 5V USB-C power adapter or power bank will work as the input source. The module then regulates this to efficiently charge your 18650 Li-ion battery at the selected current.