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701845 3.7V 550mAh LiPo Battery
$1.72
701845 3.7V 550mAh LiPo battery in a slim 7mm strip, built for voice recorders, MP3 players and compact Bluetooth speaker modules. CE/RoHS/UN38.3 certified.
701845 3.7V 550mAh LiPo battery from HNF Battery (model 701845) 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-701845 is a 7mm-thin lithium polymer battery rated at 550mAh at 3.7V in a compact 18 x 45mm format. Its medium-sized, slightly wider strip fits comfortably into handheld voice recorders, portable MP3 players, wireless intercoms, and compact Bluetooth speaker modules. Built with PCM protection for reliable overcharge and over-discharge safety in daily portable use.
Model number: HNF-701845 550mAh 3.7V
Nominal voltage: 3.7 V
Nominal capacity: 550 mAh
Dimension: 7.0 x 18 x 45 mm
Cell configuration: 1S1P
Certification: CE / RoHS / IEC62133 / UN38.3 / MSDS
Warranty: 12 months
Specifications
| Item | Rating | Remark |
|---|---|---|
| Model | HNF-701845 550mAh 3.7V | |
| Nominal Capacity | 550 mAh | Standard discharge (0.2C5A) after standard charge |
| Nominal Voltage | 3.7 V | |
| Dimension | 7.0 x 18 x 45 mm | |
| Weight | Approx: 12 g | |
| Cut-off Charge Voltage | 4.2 V | |
| Cut-off Discharge Voltage | 3.0 V | |
| 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 |
Application Field
Handheld digital voice recorders, portable MP3 and MP4 players, wireless intercom systems, compact Bluetooth speaker modules, portable language translators.
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: 2.04 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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