3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell

Product Details
Customization: Available
Type: Li-ion Battery
Cathode Material: NCM
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  • 3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
  • 3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
  • 3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
  • 3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
  • 3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
  • 3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
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  • Overview
  • Product Description
  • Company Profile
  • Packaging & Shipping
Overview

Basic Info.

Model NO.
21700-50
Size
Medium
Keyword
21700 Cell
Keyword 2
21700
Product Name
Rechargeable Li Ion Battery 21700 Cell 50e 5000mAh
Max Discharge Current
50A
Continuous Operating Current
10A-40A
Nominal Voltage
3.7V
Transport Package
Paper Box
Specification
21*70mm
Trademark
dtp
Origin
Shenzhen, China
HS Code
850760
Production Capacity
30000 Pieces /Days

Product Description

3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
Product Description
Items
Parameter
Battery model
DTP 21700
Nominal voltage
3.7v
Minimum capacity
4000mAh 4500mah 5000mah 5500mah 6000mAh (0.2C discharge)
Charging voltage
4.2v
Discharging cut-off voltage
2.75v
Standard charging
0.2C /4.2V
Max charging
1.0C /4.2V
Standard discharging
0.2C/3.0V
Max discharging 
continuous discharge : 1.0C/3.0V
non-continuous discharge:2.0C/3.0V
Shipment voltage
≥3.85V
Battery pack impedance
≤80mΩ
Operating temperature 
Charging: 0°C ~ 45°C
Discharging: -20°C ~60°C
Storage (At 50% SOC and specified temp, recoverable capacity in % vs time )   
-10ºC~25ºC  (12 months ≥85% )
-10ºC ~45ºC  (6 months ≥85% )
-10ºC~55ºC  (1 month ≥90% )
20±5ºC is the recommended storage temperature
Visual Inspection
There should not be any remarkable scratches, cracks,bolts, cauterization, deformations, swelling, leakage and so on the surface of the cell.
Reference standard
GB/T 18287-2013,KC CE ROHS IEC/EN61960, UL1642

3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell

21700 Li ion battery packs

3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell
Model Volt/capacity Discharge
SAMSUNG 21700 50E 3.7V/5000mAh 2C/10A
SAMSUNG 21700 40T 3.7V/4000mAh 10C/40A
SAMSUNG 21700 48G 3.7V/4800mAh 2C/10A
SAMSUNG 18650 35E 3.7V/3500mAh 3C/10A
SAMSUNG 18650 26J 3.7V/2600mAh 3C/7.8A
SAMSUNG 18650 30Q 3.7V/3000mAh 3C/9A
SAMSUNG 18650 22R 3.7V/2000mAh 3C/6A
  • Please send email for more information

    What are the advantages of lithium batteries?

    1.Good safety performance

    The polymer lithium battery is made of aluminum-plastic flexible packaging, which is different from the metal casing of the liquid battery.Once the safety hazard occurs, the liquid battery is easy to explode, and the polymer battery can only be air-blasted at most.

    2.Small thickness, can be made thinner

    Ultra-thin, the battery can be assembled into a credit card.Ordinary liquid lithium battery adopts the method of customizing the outer casing first, and then plugging the positive and negative materials.The thickness is 3.6mm or less, there is a technical bottleneck.The polymer battery core does not have this problem, and the thickness can be less than 1mm, which meets the needs of current mobile phones.Direction.

    3.Light weight

    A battery using a polymer electrolyte does not require a metal shell as a protective outer package.The weight of the polymer battery is 40% lighter than the steel shell lithium battery of the same capacity specification, which is 20% lighter than the aluminum shell battery.

    4.Large capacity

    The polymer battery has a capacity of 10-15% higher than that of the same size steel shell battery, which is 5-10% higher than that of the aluminum shell battery.It is the first choice for color screen mobile phones and MMS mobile phones.Nowadays, the new color screen and MMS mobile phones on the market are mostly used.Polymer batteries.

    5.Small internal resistance

    The internal resistance of the polymer battery core is smaller than that of the general liquid battery.At present, the internal resistance of the domestic polymer battery core can even be less than 35MΩ, which greatly reduces the self-consumption of the battery and prolongs the standby time of the mobile phone.The level of integration with the international.This polymer lithium battery that supports large discharge currents is an ideal choice for remote control models and is the most promising alternative to nickel-metal hydride batteries.

    6.Shape can be customized

    Manufacturers are not limited to standard shapes and can be economically made to the right size.Polymer batteries can increase or decrease the thickness of batteries according to customers' needs.Develop new battery models, which are cheap, open cycle is short, and some can even be customized according to the shape of mobile phones to make full use of battery casing space and upgrade batteries.Capacity.

    7.Good discharge characteristics

    The polymer battery uses a colloidal electrolyte, which has a smooth discharge characteristic and a higher discharge platform than a liquid electrolyte.

    8.The protection board is simple in design

    Due to the use of polymer materials, the battery core does not or explode, and the battery core itself has sufficient safety.Therefore, the protective circuit design of the polymer battery can be omitted by omitting the PTC and the fuse, thereby saving battery cost.

Company Profile

3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell

Packaging & Shipping

3.7V 21700 4000mAh 5000mAh 6000mAh Flat Top Rechargeable Li Ion Battery Cell

FAQ:
 
1. Q: What's your MOQ(minimum order quantity)  of battery ?

A: 10PCS.(Acceptance of sample orders for small trial orders)

2. Q: What's your packing methods ?

A: Industrial packing (can be as customer's requirements)

3. Q: What's your payment terms  ?
A: T/T 30% in advance & T/T 70% upon sending the goods, L/C 100%, or negotiate according to the order status.

4. Q: What's your delivery time?
A: 4 weeks after received the advance payment or L/C.

5. Q: Can we visit your factory?

A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

Please send us an email for more product details.!

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