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Lithium Polymer Battery
Created with Pixso. HZ451219 3.7V 70mAh Lithium Polymer Battery Rechargeable Lipo Cell For TWS Small Electronics

HZ451219 3.7V 70mAh Lithium Polymer Battery Rechargeable Lipo Cell For TWS Small Electronics

Brand Name: VATS Battery
Model Number: 451219
MOQ: 10
Price: US$0.98-1.35
Delivery Time: 7 work days
Payment Terms: T/T
Detail Information
Place of Origin:
Guangdong, China
Certification:
UL1642//UL2054/CB/KC/PSE/CE/ROHS/UN38.3/MSDS
Max Discharge:
1C
Dimensions:
4.5±0.2*12±0.5*19±2.5 Mm
Nominal Voltage:
3.7V
Nominal Capacity:
70mAh
Max Voltage:
4.2V
Cycle Life:
500 Cycles
Packaging Details:
Industrial cartons compliant with air & sea shipping standards
Supply Ability:
Ships in 7 Business Days (In-Stock) / 30 Business Days (Out-of-Stock)
Highlight:

3.7V 70mAh Lithium Polymer Battery

,

rechargeable Lipo cell for TWS

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small electronics Lithium Polymer Battery

Product Description
HZ451219 3.7V 70mAh Lithium Polymer Battery Rechargeable Lipo Cell For TWS Small Electronics

HZ451219 3.7V 70mAh Lithium Polymer Battery, Rechargeable Lipo Cell for TWS & Small Electronics


Specifications
Item Details
Model HZ451219
Cell Type Lithium polymer battery
Dimension 4.5±0.2*12±0.5*19±2.5 mm (Thickness*Width*Length)
Nominal Capacity 70mAh, 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
Lead Time 2-3 weeks for bulk order; 3-7 days for stock items
Packaging Industrial carton, meets air & sea shipping standards

Product Brief

This compact lithium polymer battery delivers stable 3.7V power for small portable electronics. It is rechargeable with long cycle life, and we support OEM customization to match your device design. Perfect for low-power smart gadgets and wearable products.


Why Choose Us
  • Stable & Consistent Output: Our lithium polymer battery maintains steady discharge performance. Your devices get reliable power without sudden voltage drops, reducing device malfunction risk.
  • Flexible Customization Options: We can adjust size, capacity and connectors to fit your product housing. No need to rework your device design for standard battery cells.
  • Long Service Cycle: Up to 500 charge cycles extend the usable life of your end products. End users replace batteries less often, improving product satisfaction.
  • Safe & Compliant Packaging: Packaging follows international shipping rules. Bulk shipments by air or sea can proceed smoothly without extra logistics delays.
  • Sample Testing Available: You can order samples for internal performance verification before mass purchase. Test the lipo cell with your hardware to confirm compatibility.

Product Application

This lithium polymer battery fits many portable consumer electronics for home use, daily commuting and outdoor activities. It works for car recorders, GPS navigators, smart home appliances, massagers, digital cameras, sprayers, dental rinsers, smart bracelets, blackhead devices, remote controls, smart watches, electronic toy guns, electric air pumps, smart trash cans, Bluetooth speakers, fingerprint locks, electric hair clippers, dog trainers, pest repellents, camping lights, robot vacuums, electric toothbrushes, pet water fountains, electric shavers and handheld mini fans.


FAQ
Q: Can I customize the size and capacity of this lipo cell?
A: Yes. We offer OEM service for this lithium polymer battery. Share your dimension and power requirements, and our team will check feasibility.
Q: What is the typical lead time for bulk orders?
A: Stock items ship within 3-7 days. Custom bulk production takes 2 to 3 weeks after order confirmation.
Q: What connectors can be fitted on the battery?
A: JST and Molex connectors are available. We can select the right connector type based on your device PCB requirement.
Q: How many charge cycles can this 70mAh 3.7V battery support?
A: It supports up to 500 charge cycles under standard discharge conditions.
Q: Can I get samples for testing?
A: Yes, sample testing is supported. Samples help you verify if this lipo cell works well with your electronics.
Q: What shipping standards does the battery packaging meet?
A: Our industrial carton packaging complies with international air and sea transport requirements for lithium polymer battery.
Q: Is this cell suitable for TWS earbuds?
A: Yes, this compact lipo cell is a common power source for TWS earbuds and other tiny wearable electronics.
Q: What is the maximum discharge current of HZ451219?
A: The maximum discharge current is 1C, standard discharge current ranges from 0.2C to 0.5C.

After-sales Guarantee

We are a professional lithium polymer battery manufacturer from China. All products go through basic quality inspection before shipment. If you find manufacturing defects upon receipt, please contact our support team within the agreed period. We provide responsive technical support for your battery integration projects. All packages use shipping-safe cartons to reduce damage risk during transit. We support sample trials and bulk order cooperation for your electronic product lines.

Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

O
Owen
Canada Apr 7.2026
I’ve been using this 357090 3.7V 2500mAh lipo battery for a few weeks now, and I’m really satisfied with it. It is steady-quality rechargeable lithium polymer batteries that perfectly match the rated voltage and capacity. Output efficiency is great, which helps me save a lot of working time. Build quality feels solid too, no weird noises or faults during daily operation. Shipping was fast and the packaging was protective. For small-scale battery production and copying work, this is absolutely a practical and cost-effective pick. I’d definitely recommend it to fellow business partners and will consider reordering in the future.