304050 3.7V 1500mAh LiPo Battery

$2.28

304050 3.7V 1500mAh LiPo battery, ultra-thin 3mm cell for credit card power banks, smart wallets and wearable payment terminals. CE/RoHS/UN38.3 certified.

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304050 3.7V 1500mAh LiPo battery from HNF Battery (model 304050) 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-304050 is an ultra-thin 3mm lithium polymer battery packing 1500mAh at 3.7V across a large 40 x 50mm surface. Achieving 1500mAh at just 3mm thick is a remarkable feat of energy density, making this cell perfect for ultra-slim devices like credit card power banks, thin smart wallets, slim fitness bands with extended battery, and wearable payment terminals. 150mΩ impedance with PCM protection.

Model number: HNF-304050 1500mAh 3.7V
Nominal voltage: 3.7 V
Nominal capacity: 1500 mAh
Dimension: 3.0 x 40 x 50 mm
Cell configuration: 1S1P
Certification: CE / RoHS / IEC62133 / UN38.3 / MSDS
Warranty: 12 months

Specifications

ItemRatingRemark
ModelHNF-304050 1500mAh 3.7V
Nominal Capacity1500 mAhStandard discharge (0.2C5A) after standard charge
Nominal Voltage3.7 V
Dimension3.0 x 40 x 50 mm
WeightApprox: 17 g
Cut-off Charge Voltage4.2 V
Cut-off Discharge Voltage3.0 V
Initial Impedance≤ 150 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

Credit card power banks and backup chargers, smart wallets and tracking cards, thin wearable health bands, wearable payment terminals, slim IoT devices and smart cards.

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: 5.55 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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