Shenzhen Vats Power Source Limited
                                                                                                           
Verified Supplier
15 Years
Since 2011
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401120 3.7V 50mAh Li Polymer Rechargeable Battery for Smart Wearable Devices

Price Negotiable
Price: $0.92-1.15
MOQ: 10
Delivery Time: 7 work days
Brand: VATS Battery or Neutral
Product Description
401120 3.7V 50mAh Li Polymer Rechargeable Battery for Smart Wearable Devices
Product Overview

401120 3.7V 50mAh Li Polymer Rechargeable Battery for Smart Wearable Devices

Specifications
Item Details
Model HZ401120
Cell Type Lithium polymer battery
Dimension 4±0.2 × 11±0.5 × 20±2.5mm (Thickness × Width × Length)
Nominal Capacity 50mAh, custom capacity & size available
Nominal Voltage 3.7V
Max Cutoff Voltage 4.2V
Standard Discharge Current 0.2C-0.5C
Max Discharge Current 1C
Connector JST / Molex, customizable
Cycle Life Up to 500 charge cycles
Certification UL Certified
Product Brief

This UL certified li polymer battery delivers stable 3.7V power for compact smart gadgets. As a reliable lithium ion battery cell, this 3.7v wearable device battery fits tiny electronics with limited inner space, supporting consistent daily operation for small smart hardware.

Why Choose Us
  • Stable 3.7V Output for Mini Smart Hardware: Consistent voltage avoids sudden power drops that crash your small smart devices. This 3.7v wearable device battery keeps your compact electronics running smoothly during daily use.
  • 500-Cycle Long Service Life: The li polymer battery maintains steady capacity over repeated charge cycles. It lowers your replacement frequency and cuts long-term operating costs for your finished products.
  • Customizable Size, Capacity & Connector: We adjust specs, capacity and JST/Molex connectors to match your device PCB design. No extra modification work needed for your product assembly line.
  • UL Certified Safe Lithium Ion Battery Cell: Strict production control meets UL standards. It reduces safety risks for end users and helps your finished goods pass market compliance checks.
  • Sample Testing & Flexible Lead Time: You can request samples for pre-production verification. Stock items ship in 3-7 days; custom orders finish within 2–3 weeks.
  • International Standard Export Packaging: Industrial carton packaging fits air and sea shipping rules, protecting cells from damage during cross-border transit.
Product Application

This compact li polymer battery works well for a wide range of portable electronics and smart gadgets. It fits dash cameras, GPS navigators, smart home units, massagers, digital cameras, sprayers, dental rinsers, smart bracelets, blackhead removers, remote controls, smart watches, electric toy blasters, electric air pumps, smart trash cans, Bluetooth speakers, fingerprint locks, electric hair clippers, dog trainers, pest repellers, camping lights, robot vacuums, electric toothbrushes, pet water fountains, electric shavers, handheld mini fans and other compact smart products. Suitable for daily commuting, home use, camping and outdoor portable equipment.

FAQ
Q: Can I get samples of this 3.7v wearable device battery for testing?
A: Yes, sample testing is supported. You can order pre-production samples to verify size, discharge performance and fit for your device before bulk orders.
Q: What is the cycle life of this li polymer battery?
A: It supports up to 500 charge cycles under standard discharge conditions for stable long-term use.
Q: Can I customize the capacity, dimension or connector of this lithium ion battery cell?
A: Yes, custom size, capacity, voltage and JST/Molex connector options are available to match your hardware design.
Q: How long is the production lead time?
A: In-stock items ship within 3–7 days. Custom bulk orders take 2 to 3 weeks after confirmation.
Q: What certifications does this rechargeable battery hold?
A: This li polymer battery is UL certified for safer integration into consumer smart devices.
Q: What is the maximum discharge current?
A: The maximum discharge current reaches 1C, and standard discharge ranges from 0.2C to 0.5C.
Q: Is the packaging suitable for international air and sea shipment?
A: Yes, we use industrial cartons that comply with global air and ocean shipping standards for lithium batteries.
Q: What nominal voltage does this small lithium polymer battery provide?
A: Nominal voltage is 3.7V, with a maximum cutoff charging voltage of 4.2V.
After-sales Guarantee

We are a professional manufacturer for this li polymer battery. All cells go through strict pre-shipment inspection before delivery. We support sample validation to help you confirm performance before bulk purchase. If quality issues arise from our production defects, we offer coordinated solutions for replacements. Our sales team provides responsive technical support for specification matching and shipping queries. Every batch follows international battery shipping standards to reduce transit risk for your 3.7v wearable device battery orders.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen Vats Power Source Limited
Location 1A 702, Huaqiang Creative Industrial Park, Biyan Street, Guangming District, Shenzhen, Guangdong Province,China
Contact Person Lynn

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