882142 3.7V 800mAh LiPo Battery

$1.10

882142 3.7V 800mAh lithium polymer battery, compact 21x42mm cell for electric screwdrivers, soldering irons and handheld inspection cameras. CE/RoHS/UN38.3 certified.

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The HNF-882142 is an 8.8mm-thin lithium polymer battery rated at 800mAh at 3.7V in a compact 21 x 42mm format. Its efficient use of space makes it well-suited for handheld power tools, portable electric screwdrivers, mini soldering irons, compact electric beauty brushes, and handheld inspection cameras where a modestly thicker cell provides enough energy for task completion. PCM protection ensures operational safety.

Model number: HNF-882142 800mAh 3.7V
Nominal voltage: 3.7 V
Nominal capacity: 800 mAh
Dimension: 8.8 x 21 x 42 mm
Cell configuration: 1S1P
Certification: CE / RoHS / IEC62133 / UN38.3 / MSDS
Warranty: 12 months

Specifications

ItemRatingRemark
ModelHNF-882142 800mAh 3.7V
Nominal Capacity800 mAhStandard discharge (0.2C5A) after standard charge
Nominal Voltage3.7 V
Dimension8.8 x 21 x 42 mm
WeightApprox: 16 g
Cut-off Charge Voltage4.2 V
Cut-off Discharge Voltage3.0 V
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

Handheld power tools and mini screwdrivers, portable soldering irons, compact electric beauty brushes, handheld inspection cameras and borescopes, portable glue guns.

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: 2.96 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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