# Lithium charging module, 5V to 4.2V, IP2312, CV, CC, Type-C, 3A, QC

> Charging module for Lithium-Ion/Li-Polymer 1S batteries, 4.2VDC, based on the IP2312 chip, with CC/CV charging. Powered at 5VDC via USB Type-C or IN+/IN- pads, supports QC. Factory charging current 3A, adjustable (2A without resistor, 1A with 135k resistor). Trickle charge 100mA below 3V. Red LED while charging, blue when finished. Dimensions: 35 x 15mm.

- Page: https://sigmanortec.ro/en/lithium-charging-module-5v-to-42v-ip2312-cv-cc-type-c-3a-qc
- Price: 12.05 RON
- Availability: In stock; 1-2 zile
- Reference: 9508 · EAN: 5943468869961
- Category: Electronic components > Modules for Batteries > Charging and Balancing Modules
- Specifications: Technology: Lithium Ion; Load voltage: 4.2VDC; sway: Not; Number of cells: 1S; Maximum Output Current: 3; Input Voltage: 5 VDC; Model: IP2312
- Package (shipping data): 0.005 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:22 (Europe/Bucharest)

## Description

4.2V Li-Ion/Li-Polymer battery charging module, ideal for portable projects, with IP2312 and efficient CC/CV charging. Offers trickle charge 100mA below 3V for discharged cells, then goes up to 3A, the current is adjustable. Powered at 5V via USB Type-C or IN pads, supports QC for fast charging. Red LED during charging, blue at the end.
Lithium Polymer battery charging module, compatible with Ternary Lithium Polymer, which allows charging batteries at a voltage of 4.2VDC.
It uses the IP2312 integrated circuit which is capable of Trickle Charge. When the battery voltage is lower than 3.0V, charging is performed with a reduced current of 100mA, and after exceeding this voltage threshold, the charging current reaches up to 3A.
It uses the QC (Quick Charge) standard.
The module is powered through the USB Type-C connector or directly through the IN+ and IN- pads.
The notable feature of this module is that when it detects a voltage of 4.2V in the battery with a charging current of less than 300mA, after the CV (Constant Voltage) phase, it stops charging every 4 minutes to check if the battery voltage drops. If it is above 4.15V, charging is stopped. If it drops below 4.15V, the charging process is resumed to check again after 4 minutes. If the battery is fully charged, recharging will be resumed when the battery voltage drops below 4.1V.
It can charge up to 3A and this charging current can be adjusted by changing the value of the resistor in the picture below as follows:
- factory setting: 3A
- without resistor: 2A
- with 135k resistor: 1A
Specifications:
Supply voltage: 4.5 - 5.5VDC
Integrated: IP2312
Charging stop voltage: 4.2VDC
Charging current: 3A from the factory, settable to lower values by modifying the resistor in the picture above
Indicator light: Red indicates charging status, Blue indicates charging completed
Conversion efficiency: 93% at 3A, 94% at 2A, 95% at 1A, etc...
Charging mode: CC (constant current), CV (constant voltage)
Charging current below 3V: 100mA, Trickle Charge
Compatible batteries: Lithium with final voltage of 4.2VDC
Dimensions mm: 35 x 15mm