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Lithium Polymer Battery
Created with Pixso. 502030 3.7V 250mAh Li Polymer Battery 0.925Wh Rechargeable Lipo Cell

502030 3.7V 250mAh Li Polymer Battery 0.925Wh Rechargeable Lipo Cell

Brand Name: VATS Battery or Neutral
Model Number: 502030
MOQ: 10
Price: $1.05-1.35
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
Voltage:
3.7V
Capacity:
250mAh
Max Charge Voltage:
4.2V
Cycle Life:
500 Charge Cycles
Battery Size:
5.2mm × 20.5mm ×32.5mm
Discharge Rate:
0.5C
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 250mAh Li Polymer Battery

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Rechargeable Lipo Cell with warranty

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502030 Lithium Polymer Battery

Product Description
502030 3.7V 250mAh Li Polymer Battery 0.925Wh Rechargeable Lipo Cell
Product Overview

502030 3.7V 250mAh Li Polymer Battery 0.925Wh Rechargeable Lipo Cell

Specifications
Item Details
Model 502030
Cell Type Lithium polymer battery
Dimension (max) 5.2mm × 20.5mm × 32.5mm (Thickness × Width × Length)
Nominal Capacity 250mAh, custom size/capacity/voltage available
Nominal Voltage 3.7V
Max Cut-off Voltage 4.2V
Standard Discharge Current 0.2C-0.5C
Max Discharge Current 1C
Connector JST / Molex, customizable
Certifications UL, KC, IEC62133, CE, ROHS, FCC, UN38.3, MSDS
502030 Li Polymer Battery product image 502030 Li Polymer Battery side view 502030 Li Polymer Battery technical specifications
Product Brief

This reliable li polymer battery delivers stable 3.7V power for compact small electronics. Avoid unexpected device shutdown with consistent output from this lithium ion battery cell. It works well as a 3.7v wearable device battery for many portable gadgets.

Why Choose Us
  • Stable & Consistent Power Output: Well-matched discharge performance keeps your portable devices running steadily with fewer power drops during daily use.
  • Multiple Safety Certifications: Fully tested with global standard certificates to help your finished goods pass regional inspection smoothly.
  • Flexible Custom Support: Custom size, capacity, voltage and connector options to match exact project requirements without redesign hassle.
  • Long Cycle Life: Up to 500 charge-discharge cycles while maintaining usable capacity over long-term repeated usage.
  • Sample Available For Validation: Order samples first to test fit and performance on your hardware before bulk purchasing.
  • Reliable Production Lead Time: Stock items ship within 3-7 days; bulk orders complete within 2-3 weeks for better inventory planning.
Product Applications

This practical 3.7v wearable device battery fits a wide range of compact consumer and smart electronics:

  • Home & Daily Use: Car dash cameras, GPS navigators, smart home appliances, massagers, digital cameras, sprayers, dental irrigators, smart bracelets, remote controls, fingerprint locks, electric shavers, handheld fans, electric hair clippers, smart trash cans, bluetooth speakers, electric toothbrushes, pet water fountains
  • Outdoor & Camping: Camping lights, pest repellers, dog training collars
  • Portable Gadgets: Electric inflator pumps, robot vacuum accessories, electronic toy devices, blackhead remover devices
Frequently Asked Questions
Q: Can this li polymer battery work for my wearable gadget?
A: This 3.7v wearable device battery suits most compact wearable electronics. Please double-check dimension and voltage match before purchase.
Q: What is the cycle life for this lithium ion battery cell?
A: It supports up to 500 charge-discharge cycles under standard working conditions.
Q: Can I get samples for testing?
A: Yes, sample testing is supported for performance verification before bulk orders.
Q: What certifications come with this lipo battery?
A: It carries UL, KC, IEC62133, CE, ROHS, FCC, UN38.3 and MSDS for global shipment.
Q: How long is the production lead time?
A: Stock goods ship in 3-7 days; new bulk orders take 2-3 weeks after confirmation.
Q: Can I change the connector type?
A: JST and Molex connectors are optional. We support custom connector solution upon your request.
Q: Is this battery safe for air shipping?
A: Yes. Packed with industrial cartons meeting international air & shipping standards.
Q: Do you support custom capacity or dimension?
A: Yes, custom size, capacity and voltage options are available for special project demands.
After-sales Guarantee

All li polymer battery units pass strict internal checks before delivery. Our products hold complete global safety certifications to support your business compliance. We offer professional technical support for product fitting and usage questions. If quality issues happen under normal application conditions, we provide proper after-sales solutions. Sample validation is highly suggested for hardware adaptation. Lead time varies between stock and custom-made items. Reach our support team whenever you need assistance.

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

M
Markus K.
Germany May 15.2026
Ich war anfangs echt ein bisschen skeptisch, weil man im Netz ja viel zu hören bekommt, wenn es um Li-Polymer-Akkus geht. Aber der originale E66 Akku hier? Junge, Junge... das Teil ist ein Biest! Ich habe die Zelle jetzt seit ein paar Wochen in meinem DIY-Solar-Projekt verbaut und ausgiebig getestet. Was soll ich sagen: Die 66ah sind absolut real, kein Fake-Wert! Die Kapazität ist stabil, die Spannung von 3.7V bleibt auch unter Last super konstant und das Teil wird beim Laden kaum handwarm. Man merkt einfach sofort, dass die Verarbeitungsqualität stimmt und das PCB-Schutzboard ordentlich mitgedacht wurde. Für den Preis kriegt man hier in Deutschland aktuell kaum was Besseres. Versand war auch fix, Verpackung war bombensicher – so muss das laufen! Wer verlässliche Power sucht, kann hier echt bedenkenlos zugreifen. Von mir gibt's eine klare Kaufempfehlung und verdiente 5 Sterne. Daumen hoch!
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.
H
Harry
United Kingdom Mar 18.2026
I bought these 805050 3.7V 2500mAh lithium polymer batteries to replace the old cells in my Bluetooth speakers, and they work brilliantly. Fit is absolutely perfect, no trimming needed at all. The voltage and capacity are spot on, my speakers now hold charge for much longer than before. Power output is stable, sound quality isn’t affected one bit. They’re well-made and feel really durable. Delivery arrived quickly, items were well packed with no damage. Great value for money compared to local stores. I’ve been using them daily for weeks with zero issues. Would absolutely recommend these batteries to anyone needing replacements for wireless speakers. I’ll be coming back to buy more soon!