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Big Capacity Storage Battery lithium 40T 21700 4000mAH 3.7V battery for Toy car

  • 5-499 Pieces
    $6.30
  • 500-999 Pieces
    $6.10
  • >=1000 Pieces
    $5.70
Nominal Capacity:
4000mah
Battery Type:
Lithium Battery Rechargeable Li-ion Rechargeable
Nominal Capacity:
4000mah
Nominal Voltage:
3.7v
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Shipping fee:
Depends on the order quantity.
Lead Time:
7 day(s) after payment received
Customization:
Customized logo (Min. Order: 5000 Pieces)
Customized packaging (Min. Order: 5000 Pieces)

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Graphic customization (Min. Order: 10000 Pieces) Less
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Overview
Quick Details
Certification:
ce
Brand Name:
Efest
Model Number:
21700
Rechargeable:
RECHARGABLE
Use:
Mobile Phone
Type:
Standard Battery, Battery Pack, Li-Ion, Rechargeable Batteries, Storage Batteries
Place of Origin:
Guangdong, China
Color:
White, Purple
Products Status:
Stock
Compatible Brand:
For Samsung
Product name:
Big Capacity Storage Battery lithium 40T 21700 4000mAH 3.7V battery
Application:
Vape devices, Flashlight, Remote control toys, LAPTOP
Packing:
2pcs paper box pack
MOQ:
1 pc
Warranty:
6 months
Weight:
75g
Certificate:
CE ROHS FCC UL
Battery Voltage:
3.7V
Battery Capacity:
4000mah

Packaging & Delivery

Selling Units:
Single item
Single package size: 
45X27X22 cm
Single gross weight:
9.750 kg
Package Type:
120pcs in one box
Picture Example:
package-img
package-img
Lead Time :
Quantity(Pieces) 1 - 5000 >5000
Est. Time(days) 7 To be negotiated
Big Capacity Storage Battery lithium 40T 21700 4000mAH 3.7V battery for Toy car
Specification
Size
21*70.0mm
Nominal voltage
3.6V
End-of-charge voltage
4.20V
End-of-discharge Voltage
2.50v
Typical Capacity
4000mAh (0.2C discharge)
Min capacity
3900mAh (0.2C discharge)
Weight
Max:69g
Internal resistance
Max:8mΩ
Standard Charge
2000mA,CCCV 100mA cut-off
Charging Time
3hours(standard charge)
Quick Charge Current
4000mA
Max Continuous Discharge Current
30000mA
Operating Temperature
Charging, 0°C ~ 45°C
Discharging, -20°C~70°C
Storage Temperature
-5°C~35°
Storage Humidity
≤75%RH
Appearance
Without scratch,distorion,contamination,and leakage
Standard environmental condition
Temperature: 23±5°C
Humidity :45-75%RH
Atmospheric Pressure :86-106KPA
Warnings:
Do not submerge the battery in the water.
Do not mix fresh batteries with used batteries.
Do not mix batteries with metal stuff together.
Do not insert batteries with the (+) and (-) reversed.
Do not use Efest batteries with defective devices.
Do not disassemble, dispose in fire, heat or short circuit.
Do not put the battery in a charger or equipment with wrong terminals connected.
Product Description
Why Choose Us
TESTS & CERTIFICATIONS
BATTERY ORDERS WE RECEIVED


ALIBABA TRADE ASSURANCE ORDERS & FEEDBACKS
APPLICATIONS FOR BATTERY AND BATTERY PACK
Packing: ★Stong Foam box packing. Meet Air standard, Express standard packing requirements to make sure safe transportation!

Shiping:
★ Within 2-3 days after receiving payment(based on actual quantity)
★ Tracking NO. will be sent to you after delivery, and we will track the goods for you until you receive all of them.
★DHL/FedEx/UPS: 3-5 workdays (for small volume) will find the best favorite way for you.
★ Air Shipping: 5-7 workdays
★ Sea Shipping: 20-28 days
Company Profie
FAQ
Question1:
There are many unqualified battery and charger in the market, how can you make sure your quality control?
Answer:
We have past CE/FCC/UL/RoHs/UL/PSE... We have QC department for product quality

Question2.
How about your production capacity,and how can you make sure my goods would be delivery timely?
Answer:
Supply Ability: 100000 Pieces/day, We work with many big company around the wrold.

Question3:
Do you offer OEM service?
Answer:
We have a Technical department support your any idea,for thousands of cooperative partner. OEM and ODM accept and offer confidentiality agreement "business secret contract" for your design safe

Question4:
Can I place one small order for first time to test the quality?
Answer:
Small order are also welcomed, and we offer new customers 3% discount for first order and offer free sample.

Question5:
Can I visit your factory?
Answer:
Your are wecomed to visit our factory,and we offer free hotel and free car

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