651447 3.7V 450mAh LiPo Battery

$0.95

651447 3.7V 450mAh LiPo battery, elongated slim cell for pen-style Bluetooth headsets, presentation pointers and fitness bands. CE/RoHS/UN38.3 certified.

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651447 3.7V 450mAh LiPo battery from HNF Battery (model 651447) is engineered for compact, reliable power in a slim footprint. This pack pairs dependable PCM protection with consistent capacity, making it a trusted choice for OEM integrators worldwide.

The HNF-651447 is a 6.5mm-thin lithium polymer battery delivering 450mAh at 3.7V in an elongated 14 x 47mm strip. Its slim, lengthened format provides higher capacity than shorter strip cells, making it ideal for pen-sized Bluetooth headsets, long-reach presentation pointers, stylus charging docks, and wearable fitness tracking bands. 220mΩ impedance with PCM protection for safe daily use.

Model number: HNF-651447 450mAh 3.7V
Nominal voltage: 3.7 V
Nominal capacity: 450 mAh
Dimension: 6.5 x 14 x 47 mm
Cell configuration: 1S1P
Certification: CE / RoHS / IEC62133 / UN38.3 / MSDS
Warranty: 12 months

Specifications

ItemRatingRemark
ModelHNF-651447 450mAh 3.7V
Nominal Capacity450 mAhStandard discharge (0.2C5A) after standard charge
Nominal Voltage3.7 V
Dimension6.5 x 14 x 47 mm
WeightApprox: 8 g
Cut-off Charge Voltage4.2 V
Cut-off Discharge Voltage3.0 V
Initial Impedance≤ 220 mΩ
Standard Charge0.2C CC charge to CV then CV till current ≤0.01CCharge time: approx. 7.0 h
Standard DischargeDischarge at 0.2C5A to cut-off voltage
Cycle Life≥500 cycles, 80% capacity retention
Operating TemperatureCharge 0~+45℃ / Discharge -20~+60℃
Storage Temperature-10~+45℃
Storage Humidity45-75% RH

Application Field

Pen-style Bluetooth headsets, long-reach presentation pointers, stylus charging docks, wearable fitness tracking bands, slim wireless keyboard batteries.

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: 1.67 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.

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