357090 Polymer Li Ion Battery 2000mAh 3.7V For RC Helicopter
Price:
Negotiate
MOQ:
1000pcs
Delivery Time:
2~4weeks for samples,4~6 weeks for mass production
Brand:
ODM/OEM
Product Description
Rechargeable Polymer Li-ion Battery 357090 2000mAh 3.7V for RC Helicopter PDA Power Bank
◆ 10 years of li-polymer battery manufacture & export experience
◆ Excellent quality, advanced services and competitive prices
◆ Reply within 24 working hours
◆ Professional R&D team supporting
1. Production Description:
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Battery Type
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Li-Polymer
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Material
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LiCoO2/NMC
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PN
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357090
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Voltage/Capacity
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3.7V/2000mAh
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Weight
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Approx 36.0g
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Shape
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Soft pack
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Dimensions
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3.6(T)x70.5(W)x92.5(L)mm MAX
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Package
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Inner Tray + Carton
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Cycle Life
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≥500 times
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Warranty
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12 months
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Charge Info
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Charge Cut-off Voltage : 4.20V±0.05V
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Charging method: CC/CV
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Standard Charge Current : 400 mA (0.2C)
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Max Charge Current: 2000mA (1.0C)
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Discharge Info
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Discharge Cut-off Voltage : 3.0V
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Max Constant Discharge Current : 2000mA/Customized
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Working Temperature
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Standard Charge: 0~+40℃
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Standard Discharge: -20~+60℃
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Production Lead Time
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In stock: 5-7 working days; Out of stock: 20-25 working days
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2. Basic Electrical Characteristics
| Items | Criteria | Test Method |
| Initial Shipment Voltage | 3.75V～3.90V | Measure with voltmeter. |
| Minimal Capacity(CR) | ≥400mAh | Standard Discharge after Standard Charge and rest 10min. |
| 1C5A Discharge Capacity | ≥90%×CR | 1C5A discharge to the Discharge Cut-off Voltage after Standard Charge and rest 10min. |
| Temperature Characteristics | Discharge Capacity : 55℃: ≥85％×CR 0℃: ≥80％×CR -10℃:≥60％×CR | After Standard Charge, the battery is stored at (-10 ± 2)℃ for 4hours, and then at the same temperature 0.2C5A discharges to the Discharge Cut-off Voltage. According to this procedure, test (0 ± 2)℃, (55 ± 2)℃ discharge capacity, respectively. |
| Cycle Life | Discharge Capacity(501th cycle )≥80%×CR | A cycle is defined as a Standard Charge, 10 minute-rest and Standard Discharge.The battery is to be cycled for 501 times. |
| Remark: 1."Standard Charging" means 0.2C5A (38mA) CC(constant current) charge to Charge Limited Voltage, then CV(constant voltage) charge till charge current decline to 0.02 C5A at 23±2℃. 2."Standard Discharging" means 0.2C5A (38mA) discharge to the Discharge Cut-off Voltage at 23±2℃. | ||
3. Safety Characteristics
| Items | Criteria | Test Method |
| Over-charge | No fire. No explosion. | Charging to 6V with Maximum Charging Current after Standard Discharge, then CV Charge till current decline to End-of-Charge Current or CV time is more than 7hours. |
| Short-Circuit | The maximum Temperature: ≤150℃. No fire. No explosion. | Rest for 30miniutes at (55±2)℃ after Standard Charge, then short-circuit battery by connecting the positive and negative terminals with a circuit load having a resistance load(copper wire) of 80±20mΩ.Test can be terminated when battery surface temperature has returned to ±10°C of environment temperature. |
| Thermal Abuse | No fire. No explosion. |
The battery is to be heated in a gravity convection or circulating air oven after Standard Charge. The temperature of the oven is to be raised at a rate of 5±2℃per minute to a temperature of 130 ±2°C and remain for 10 minutes. |
4. Reliability Characteristics
| Items | Criteria | Test Method |
| Static Humidity and Temperature | Retention Capacity:≥80%×CR Recoverable Capacity ≥85% ×CR No deformation. No rupture. No smoke. No leakage | After Standard Charge, the battery is stored at 40±2℃ and 90% -95%RH for 48hours, then rest for 2hours at 23±2 ℃ . Standard Discharge to test its retention capacity, and then perform a cycle with Standard Charge and Standard Discharge procedure to test recoverable capacity |
| Vibration | OCV≥3.6V No leakage. No fire. No explosion | After Standard Charge, the battery is fixed to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz and 55Hz, the excursion of the vibration is 1.6mm. The battery shall be vibrated for 30 minutes per axis of XYZ axes. |
| Drop | OCV≥3.6V No leakage. No fire. No explosion. | After Standard Charge, the battery is to be dropped from a height of 1 meter onto concrete board for 6 times, then measure Open Circuit Voltage. |
5. Application
6. Our Advantages
7. Package
8. FAQ
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◆ Can I have a sample order?
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〓 Yes, samples orders are welcome, you can check our battery quality and size based on it firstly.
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◆ How to confirm the quality with us before start to produce?
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〓 (1) You can get a free sample and choose from it, and then we make the quality according to that. Or.
(2) Send us your samples, and we can make the battery according to your quality. |
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◆ How to solve the quality problems after sales?
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〓 (1) Take photos & videos of the problems and send to us.
(2) Send back the physical problem battery by express to us. (3) Engineer will analyze the defective battery within 24 hours. |
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◆ Do you have any MOQ limit?
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〓 Yes, we have MOQ for mass production, which depends on stock status.
1~10pcs samples order is available.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen AMT Technology Co., Ltd.
Location
Room 14F,Building A2,Zhujiang Plaza,Longxiang Road,Longgang District,Shenzhen,Guangdong,China
Contact Person
Sales Manager