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Lithium Polymer Battery
Created with Pixso. 3.7V 700mAh Li Polymer Battery 603040 Rechargeable Lithium Ion Cell For GPS Tracker

3.7V 700mAh Li Polymer Battery 603040 Rechargeable Lithium Ion Cell For GPS Tracker

Brand Name: Vats Battery
Model Number: 603040
MOQ: 3 pcs
Price: $1.05~1.5
Delivery Time: 7 work days
Payment Terms: T/T
Detail Information
Place of Origin:
Guangdong, China
Certification:
CE
Nominal Voltage:
3.7V
Cycle Life:
500 Cycles
Charge Voltage:
4.2V
Nominal Capacity:
700mAh
Dimension:
6±0.2*30±0.5*40±2.5mm
Max Discharge Current:
1C
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 700mAh lithium polymer battery

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rechargeable lithium ion cell for GPS tracker

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603040 Li polymer battery with warranty

Product Description
3.7V 700mAh Li Polymer Battery 603040 Rechargeable Lithium Ion Cell For GPS Tracker
Product Specifications
Item Details
Model HZ603040
Battery Type Lithium polymer battery
Dimension 6±0.2 × 30±0.5 × 40±2.5mm (Thickness × Width × Length)
Nominal Capacity 700mAh, custom capacity & size available
Nominal Voltage 3.7V
Max Cut-off Voltage 4.2V
Standard Discharge Current 0.2C-0.5C
Max Discharge Current 1C
Cycle Life 500 charge-discharge cycles
Connector JST / Molex, customizable
Certification CE compliant
Product Overview

This reliable li polymer battery delivers stable 3.7V power for GPS trackers and small consumer gadgets. As a practical lithium ion battery cell, it supports OEM & ODM customization to match your wearable and compact device needs. It reduces frequent recharging trouble for your portable electronics.

Key Advantages
  • Stable Long-Cycle Performance: Built for 500 cycles, this 3.7V wearable device battery holds consistent capacity over repeated use. You get longer service life and lower replacement cost for your devices.
  • Flexible Custom Options: Custom size, capacity, voltage and connector options are available. Match this lithium ion battery cell perfectly to your project without extra modification work.
  • Reliable Discharge Output: 0.2C-0.5C standard discharge with 1C max rating offers steady power output. Your GPS tracker and small electronics run smoothly without sudden power drops.
  • Sample Supported For Validation: Sample testing is allowed before bulk order. You can verify li polymer battery real-world performance for your product development.
  • Standard Safe Packing: Packed to meet international air and ocean shipping rules. Goods arrive safely for your overseas inventory and project roll-out.
  • Reasonable Lead Time: Stock items ship within 3-7 days; custom orders finish in 2-3 weeks. Plan your production timeline with predictable delivery schedules.
Applications

Fit for daily home use, commuting travel and outdoor activities. Works well for GPS trackers, car recorders, smart home appliances, massagers, digital cameras and smart bracelets. This 3.7V wearable device battery also powers sprayers, dental rinsers, remote controls and compact smart gadgets for personal and small-business projects.

Frequently Asked Questions
Q: Can this li polymer battery work for my custom wearable device?
A: Yes. We offer custom size, voltage and connector. This 3.7V wearable device battery fits most compact wearable and portable electronics.
Q: What is the typical cycle life of this lithium ion battery cell?
A: It supports up to 500 standard charge-discharge cycles under proper usage.
Q: Can I get samples to test performance?
A: Sample testing is supported. You can validate real-world performance before placing bulk purchase.
Q: What is your production lead-time?
A: Stock goods ship within 3-7 days. OEM / ODM custom orders take 2-3 weeks after order confirmation.
Q: Which connectors are available for this li polymer battery?
A: JST and Molex connectors are optional, we can follow your connector requirement.
Q: Is the package suitable for international shipping?
A: Yes. Packaging meets international air and sea shipping standards for safe transit.
Q: Can I adjust capacity and dimension for my project?
A: Yes, custom size, capacity and voltage options are supported for your device project.
After-sales Guarantee

We supply factory-direct li polymer battery for global buyers. All units follow CE safety standards. If you receive defective items, please reach our support team for resolution. Custom orders follow confirmed specification. We provide responsive technical support for your lithium ion battery cell integration questions. Order adjustment is available before production starts.

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!
R
Robert T.
United States May 13.2026
As a veteran engineer in portable audio and smart hardware R&D, I demand the absolute best in battery electrical performance. We sourced this 103048 3.7V 1500mAh Li-polymer battery for a BT speaker project, and its real-world performance has completely blown us away.
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.