Storage Battery Lithium 21700 4000mAh 3.7V Battery for Toy Car

• Customization: Available
• Type: Lithium Battery
• Charger Application: Standard Battery
• Model NO.: 21700 40T
• Nominal Voltage: 3.7V
• Charger Style: Intelligent Charger
• Compatible Battery Type: 21700
• Size: 21*70
• Certification: SASO, GOST-R, KC, PSE, CTIA, RoHS, TUV, CB, CE
• Recyclable: Recyclable
• Item: 3.7V 4000mAh 21700 40t
• Capacity: 4000mAh
• Rechargeable: Yes
• Battery Type: 21700 Rechargeable Li-ion
• Keywords: 40t
• Payment: T/T, Paypal Ke
• Warranty: 1 Year
• Transport Package: Single Package
• Specification: 3.7v 5000mah
• Trademark: APOWER
• Origin: China
• HS Code: 8506500000
• Production Capacity: 20000

Product Description

Storage Battery lithium 21700 4000mAH 3.7V battery for toy car

Size	21*70mm
Rated Voltage	3.7V
Rated Capacity	4000mAh
Internal Resitance	20mΩ
Net Weight	59g
Cut-off Discharge Voltage	2.75V
Charge Upper Limit Voltage	4.20±0.05V
Charging Time	1.5 hours(with Efest battery charger)
Max Discharging Current	30A
Continuous Discharging Current	20A
Cycle Life	>500s
Standard charger	cc/cv(max ,charging rate 2A)
Warranty	1 years
Operating  Temperature	charge (0 ~ 45°C)
	discharge  (-20 ~ 60°C)
Storage Temperature	within 1 month  (-20~ 50°C)
	within 3 months  (-20~ 40°C)
	within 3 months (-20~ 20°C)

 

 


Packing & Shipping
Delivery detail:
 
· 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
· Air Shipping: 5-7 workdays
· Sea Shipping: 20-28 days





FAQ
Q1 What's the main product in APOWER?
  Rechargeable battery, Li-ion battery, battery pack, battery cahrger and Iwalkie. 
   
Q2 What is overcharge?
 After charge, tested the batteries initial state and capacity. Charge to 10.0V at 3C current, then charge to 0.01C at CV mode. Observe changes in battery appearance.
 
Q3 What is over discharge?
 After charge, test the batteries' initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance
 
Q4 Can I have a sample order?
   Yes, we accept sample order to test and check quality. Batteries can be made as require.
 
Q5 Do you have MOQ limit?
  Yes, we have MOQ limit for mass production, but it depends on battery model. Please contact us for details.
 
Q6 How about the lead time?
   Samples will takes 5-7 business days. Mass production will takes 25-30 days. It depends on quantity.
 
Q7 How about shipping and delivery time?
  Generally, battery will be shipped via Express, such as DHL, TNT, FedEx and UPS, delivery time is 3-5 business days. Or DDP service, delivery time is 11-15 business days. Airline and sea shipping also available.
 
Q8 What about after-sale service?
  We will offer you 1 year guarantee. If there are any problems, please inform us, we will offer you positive solutions.
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