301030 3.7V 70mAh Lithium Polymer Battery Rechargeable Grade A Cell Long Cycle Life

The 301030 is a 3.7V 70mAh lithium-polymer pouch cell manufactured by VATS Battery, an ISO9001-certified lithium battery maker based in Guangdong, China. Built on a compact 2.5×10×30mm (T×W×L) footprint, it combines a stable 3.7V nominal voltage with a true 70mAh capacity, so portable devices run longer on a single charge without adding bulk.

Each cell is produced on automated lines and individually screened for capacity, voltage and internal resistance before shipment, which keeps batch-to-batch consistency high and makes the 301030 a dependable drop-in power source for OEM and ODM programmes. Because the chemistry, dimensions and protection circuit can all be customized, engineers can either select this standard model or ask us to develop a bespoke cell around a specific power, footprint and cost target.

• True Rated Capacity: Delivers a genuine 70mAh at 3.7V, verified by capacity, voltage and internal-resistance testing on every production lot.
• Stable Output: A flat discharge curve holds close to 3.7V, protecting sensitive circuits and extending usable runtime.
• Long Cycle Life: Rated for more than 500 charge–discharge cycles with excellent capacity retention.
• Certified Safety: Compliant with IEC62133 / UL / CE / CB / KC / UN38.3 / MSDS, with built-in protection against over-charge, over-discharge, over-current and short circuit.
• Flexible Customization: Size, capacity, voltage, connector, wire length and PCM can be tailored to your design; OEM and ODM are both welcome.
• Ready to Integrate: Supplied with JST / Molex (optional) so the cell can drop straight into your assembly line.

Thanks to its slim, lightweight build and stable 3.7V output, the 301030 fits a wide range of applications including:

• Digital products
• Bluetooth devices
• GPS trackers
• Power banks
• Portable electronics
• Bluetooth speakers and headsets
• Fitness wearables and smart watches
• Medical and healthcare instruments
• Beauty and personal-care devices
• IoT sensors
• LED lighting
• Toys

Its customizable connector and protection circuit simplify integration, reducing assembly time and supporting both prototyping and high-volume mass production.

Every 301030 is packed in industrial cartons with anti-static trays and shock-absorbing material that meet international air and sea shipping standards, protecting the cells throughout transport.

If you need datasheets, samples or a custom specification, contact our sales team and we will match the right cell to your project and support you from prototype through mass production.