Address:
6F No.18 Yucai Rd, Dalingshan Town, Dongguan, Guangdong, China
Business Hours: Mon–Fri 9AM–6PM (GMT+8)
Address:
6F No.18 Yucai Rd, Dalingshan Town, Dongguan, Guangdong, China
Business Hours: Mon–Fri 9AM–6PM (GMT+8)












$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.
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
| Item | Rating | Remark |
|---|---|---|
| Model | HNF-304050 1500mAh 3.7V | |
| Nominal Capacity | 1500 mAh | Standard discharge (0.2C5A) after standard charge |
| Nominal Voltage | 3.7 V | |
| Dimension | 3.0 x 40 x 50 mm | |
| Weight | Approx: 17 g | |
| Cut-off Charge Voltage | 4.2 V | |
| Cut-off Discharge Voltage | 3.0 V | |
| Initial Impedance | ≤ 150 mΩ | |
| Standard Charge | 0.2C CC charge to CV then CV till current ≤0.01C | Charge time: approx. 7.0 h |
| Standard Discharge | Discharge at 0.2C5A to cut-off voltage | |
| Cycle Life | ≥500 cycles, 80% capacity retention | |
| Operating Temperature | Charge 0~+45℃ / Discharge -20~+60℃ | |
| Storage Temperature | -10~+45℃ | |
| Storage Humidity | 45-75% RH |
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.
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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