LIR3048 3.6V 300mAh Coin Li-ion Rechargeable Battery for Bluetooth beacons, smart tracking tags, wearable sensors, electronic shelf labels
| Parameter | Specification |
|---|---|
| Model | LIR3048 |
| Nominal Voltage | 3.60V |
| Nominal Capacity | ≥300mAh at 0.2C discharge |
| Maximum Charge Voltage | 4.25V |
| Standard Charging Current | 0.2C |
| Rapid Charging Current | 0.5C |
| Maximum Discharging Current | 0.5C |
| Cell Dimensions | Max. 5.0 x 30.1 mm (T x D, as shipped) |

Compact size with stable 3.6V output.

Rechargeable reduces disposable battery waste.

Low weight for portable applications.
Consistent voltage during discharge.
Top LIR3048 3.6V 300mAh Li-ion Polymer Rechargeable Battery Manufacturers in China
The VTC-LIR3048 is a 3.6V 300mAh Li-ion battery designed for compact rechargeable power requirements where a thin round cell format is needed. According to the datasheet, the cell provides a nominal capacity of at least 300mAh at 0.2C discharge, a nominal voltage of 3.60V, a maximum charge voltage of 4.25V, standard charging at 0.2C, rapid charging at 0.5C, standard discharge at 0.2C, and maximum discharge at 0.5C. The listed cell dimension is up to 5.0 x 30.1 mm as shipped, with charging temperature from 0 ℃ to +45℃ and discharging temperature from -10 ℃ to +60℃ under humidity up to 85% RH. VTCBATT supports factory supply, OEM/ODM battery customization, sample development, connector or tab configuration discussion, labeling, and wholesale batch production for device manufacturers and battery distributors that need a compact rechargeable Li-ion coin cell.
Compact & Rechargeable Power
The LIR3048 coin lithium battery is small, lightweight, rechargeable, and delivers stable 3.6V output. It offers high energy density, long cycle life, and reliable performance, making it ideal for wearable devices, smart sensors, medical monitors, and other compact electronics.


Certifications & Safety
The 3.6V LIR3048 battery meets international safety and quality standards. It is CE, RoHS, and UN38.3 certified, ensuring reliable performance, safe charging, and compliance for wearable devices, smart sensors, and small electronics.
Why Choose VTCBATT?
VTCBATT not only focuses on customized design and excellent service to meet the diverse demands of different customers, but also devotes itself to precise and standardized manufacturing in every process to ensure the highest-quality batteries. Meanwhile, VTCBATT will provide comprehensive support from pre-sales to after-sales, focusing on customers’ feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your best custom battery experts to assist with reliable and fast services at any time.
From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.
Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.
Application
This VTC LIR3048 3.6V 300mAh rechargeable Li-ion polymer battery is suitable for low-to-moderate power devices such as Bluetooth beacons, smart tracking tags, wearable sensors, electronic shelf labels, portable medical monitors, LED badges, IoT sensor nodes, and backup power modules. Its 5.0 x 30.1 mm cell size and 300mAh capacity make it useful where the battery compartment is shallow but requires more energy than a smaller coin-format rechargeable cell. VTCBATT can support application-specific customization for equipment manufacturers, including connector matching, wire length design when a pack configuration is required, tab direction, NTC configuration when specified by the device design, protection circuit design at pack level, custom label requirements, sample testing, and batch production. For brand owners, distributors, and OEM device factories, VTCBATT provides factory-direct battery wholesale and stable supply support based on the final electrical, mechanical, and assembly requirements.














