651665 3.7V 720mAh LiPo Battery

The HNF-651665 is a 6.5mm-thin lithium polymer battery rated at 720mAh at 3.7V in a narrow 16 x 65mm strip. A step up in capacity from the 65xx shorter series, this cell excels in devices needing extended runtime without widening the battery compartment — such as TV remote controls, wireless keyboard power supplies, stylus holder charging bays, and slim presentation clickers. 200mΩ impedance ensures stable discharge.

Model number: HNF-651665 720mAh 3.7V
Nominal voltage: 3.7 V
Nominal capacity: 720 mAh
Dimension: 6.5 x 16 x 65 mm
Cell configuration: 1S1P
Certification: CE / RoHS / IEC62133 / UN38.3 / MSDS
Warranty: 12 months

Specifications

Application Field

TV remote controls and universal remotes, wireless keyboards, stylus holder charging bays, slim presentation clickers, electric beauty brushes.

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: 2.66 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.