302530 3.7V 180mAh LiPo Battery

The HNF-302530 is an ultra-compact 3.0mm-thin lithium polymer battery delivering 180mAh at 3.7V in a tiny 25 x 30mm footprint. Designed specifically for children’s smartwatches and compact wearable devices, its slim pouch format slides easily into tight wrist-worn enclosures where every millimeter counts. Despite its miniature size, it provides reliable all-day power for GPS tracking, activity monitoring, and Bluetooth connectivity in wearable applications.

Model number: HNF-302530 180mAh 3.7V
Nominal voltage: 3.7 V
Nominal capacity: 180 mAh
Dimension: 3.0 x 25 x 30 mm
Cell configuration: 1S1P
Certification: CE / RoHS / IEC62133 / UN38.3 / MSDS
Warranty: 12 months

Specifications

Application Field

Children’s smartwatches, fitness trackers, wearable health monitors, Bluetooth earphones, mini remote controls, IoT sensors, compact medical wearables.

Main Advantages

• High energy density, stable 3.7V nominal voltage
• High-drain capable, stable discharge performance
• Lightweight and ultra-thin; dimensions customizable on request
• Extremely safe, low self-discharge, long cycle life (≥500 cycles (80% capacity retention))
• Reliable PCM protection against over-charge and over-discharge
• Wide operating temperature: -20℃ ~ +60℃

FAQ

Q: Do you accept customization?
A: Yes. We are a professional custom lithium battery manufacturer. Share your required voltage, capacity, and dimensions.

Q: Can this be shipped by air?
A: 0.67 Wh — well within the 100Wh limit, suitable for air freight with MSDS & UN38.3 documentation.

Q: Do you offer samples?
A: Samples are available; sample cost is refunded once a bulk order is confirmed.

Q: What is the MOQ?
A: In-stock items have no MOQ. For customized cells, MOQ is typically 3,000-10,000 pcs depending on size and capacity.

Q: How is quality assured?
A: Multi-stage quality control across R&D, incoming inspection, production, pre-shipment, and after-sales, fully certified with CE, RoHS, and IEC62133.