Name: China Pouch Ultra Narrow Polymer Battery Manufacturers Suppliers Factory - Customized Service - Blumoti
Brand: Blumoti
SKU: 289577370

Shenzhen Blumoti Energy Co., Ltd. is a leading Chinese manufacturer and supplier of Pouch Ultra Narrow Polymer Battery. If you are looking to source durable, bulk Pouch Ultra Narrow Polymer Battery from China, feel free to contact our factory for details. Custom orders are welcome.

Custom Ultra Narrow Polymer Battery | Ultra Narrow Lipo batteries

Pouch Ultra-Narrow LiPo Battery is a subcategory of lithium polymer batteries featuring an ultra-narrow form factor and pouch structure.

With a typical width of 2–8 mm-customizable to even narrower dimensions-and a thickness of 1–5 mm, its slim, strip-shaped design fits extremely tight spaces such as smartwatch crowns and TWS earbud contact modules.

The aluminum-plastic film pouch packaging makes it 20%–30% lighter than comparable rigid batteries. It also supports slight bending and irregular shape customization to better match the internal structure of compact devices.

Pouch ultra-narrow Polymer batteries are ideal for wearables, including earbud stems and slim smart bands, as well as micro IoT sensors, minimally invasive medical devices, and mini GPS trackers. They are an excellent power solution for electronics with extremely limited internal space.

Pouch Ultra Narrow Polymer Battery – General Specifications

Nominal Voltage: 3.7V

Charging Voltage: 4.2V

Discharge Cut-off Voltage: 3.0V

Nominal Capacity: 130mAh (0.2Cdischarge)

Standard Discharge Rate: 0.2C–1C, 1C-30C can be customized.

Standard Charging Rate: 0.2C–0.5C. max. 1C

Protection Circuit: PCB/PCM, including overcharge, over-discharge, overcurrent, and short-circuit protection

Operating Temperature: 0–45°C (charging); -20–60°C (discharging)

Product parameters

Model NO.	Capacity	Nom.Voltage	Discharge Rate	Thickness	Width	Length	Shaped
160622BM	10mAh	4.2V	1C	1.6mm	6.5mm	22mm	Narrow
490713BM	20mAh	4.2V	1C	4.9mm	7mm	13mm	Narrow
551135BM	130mAh	4.2V	20C	5.5mm	11mm	35mm	Narrow
601147BM	210mAh	4.2V	15C	6mm	11mm	47mm	Narrow
671160BM	300mAh	4.35V	30C	6.7mm	11mm	60mm	Narrow
661185BM	450mAh	4.35V	31C	6.6mm	11mm	85mm	Narrow

Pouch Ultra Narrow Polymer Battery Features

Low self-discharge.

Monthly self-discharge is less than 2%.

Long Cycle Life

At 25°C ambient temperature, it retains 80% capacity after 600 charge-discharge cycles.

Customizable Dimensions

Width, length, and thickness can all be customized with high dimensional accuracy.

Applications for Ultra Narrow Polymer Battery

Pouch Ultra-Narrow LiPo Battery is mainly used in compact electronic devices with extremely limited internal space that require a slim, strip-shaped battery:

1. TWS Earbuds and Smart Bands/Watches

Designed for narrow spaces such as earbud stems, areas near smartwatch crowns, and inside slim watch or fitness bands.

2. Smart Glasses and AR Glasses

Can be placed inside narrow structures such as the temples or nose bridge, powering sensors, Bluetooth modules, and display components.

3. Micro IoT Sensors and Miniature Medical Devices

Ideal for space-constrained, strip-shaped housings, including environmental and positioning sensors, wearable medical patches, and monitoring modules.

4. Mini GPS Trackers, Smart Pens, and E-Cigarettes

Suitable for hidden or slim-profile tracking devices and elongated consumer electronics.

5. Micro Remote Controls and Small Wireless Module

Used in ultra-thin remote controls, Bluetooth buttons, access cards, electronic tags, smart cards, and similar compact products.