Introduction
The Lithium Ion Polymer Battery 3.7 V 40 mAh is a small, rechargeable lithium polymer battery that provides a stable 3.7 V voltage output, suitable for low-power miniature electronic devices.
Advantage
High Energy Density
It guarantees a stable 3.7 V output at a 40 mAh capacity.
Flexible Charging Options
Supports standard charging (0.5 C) and fast charging (1 C), meeting the battery charging needs for different usage scenarios.
Low Self-Discharge Rate
Utilizing high-quality lithium polymer cells, it can maintain its charge for extended periods during storage or standby.
Specification
|
Items |
Specifications |
|
Batteries |
3.7v 40mah lipo battery |
|
Charge voltage |
4.2V |
|
Nominal voltage |
3.7V |
|
Nominal capacity |
1000mAh 0.2C Discharge |
|
Charge current |
Standard Charging: 0.5C Rapid charge: 1.0C |
|
Standard Charging Method |
0.5C CC (constant current) charge to 4.2V, then CV (constant voltage 4.2V) charge till charge current decline to ≤0.05C |
|
Charging time |
Standard Charging:2.75hours(Ref.) Rapid charge: 2hours(Ref.) |
|
Max. charge current |
1.0C |
|
Max. discharge current |
1.0C |
|
Discharge cut-off voltage |
2.75V(0.2C) |
|
Operating temperature |
Charging: 0 °C ~45 °C Discharging:0 °C ~45 °Carging: 0 °C ~45 °C |
|
Discharging: Storage temperature0 °C ~45 °C |
-10°C~ +45 °C |
|
Dimension |
Length: 50±2mm (not including tabs) Width: 20±0.5mm Thickness:10±0.2mm |
|
Drop Test |
The cell is to be dropped from a height of meters twice onto concrete ground. No fire, no leakage |
|
Cycle time |
≥300times |
Delivery
|
Selling Units |
Single item |
|
Single package size |
48.2X51X13.8 cm |
|
Single gross weight |
46.000 kg |
Lead Time
|
Quantity (pieces) |
1 - 100 |
> 100 |
|
Lead time (days) |
14 |
To be negotiated |
Our Certification
We hold CCC certification, ISO 9001 quality system certification, KC certification, UL certification, and are compliant with RoHS standards. Additionally, we possess two invention patents and one utility model patent.
FAQ
Q: Do you have current samples in stock?
A: We usually have battery cells in stock. Battery packs need to be assembled, as different customers have different requirements. Even if the voltage and capacity are the same, other parameters may vary. However, we can finish your samples quickly once the order is confirmed.
Q: Can I have a sample order?
A: Yes, we welcome sample orders to test and check quality. Customization is available. We offer OEM/ODM services.
Q: What's the delivery time for mass production?
A: Usually 25–30 days. It depends on the order quantity, materials, battery cell model, and other factors. We suggest confirming the delivery time on a case-by-case basis.
Q: What kind of certificates can you provide for the battery?
A: For some 3.7 V Li-Po batteries, we already have various certificates. For custom-designed products, there may be no existing certificates. We can apply for CE, UL, UN38.3, and other related certifications upon request. The certification fees need to be paid by the customer, but if the order quantity is large enough, the certification fees can be refunded.
Q: What is your quality control process?
A: We are ISO9001 certified and strictly follow ISO procedures. We carry out 100% inspection on all batteries before delivery.
Hot Tags: lithium ion polymer battery 3.7 v 40mah, China lithium ion polymer battery 3.7 v 40mah manufacturers, suppliers, factory, Bluetooth Headset 250mah Battery, 3 7 V Polymer Lithium Ion Battery, 3 7 V 300mah Li Polymer Rechargeable Battery, AAA Lithium Ion Batteries, 40 series battery, Battery Of Bluetooth Headphones 300mah
