21700 3.7V 4800mAh Rechargeable Lithium Battery
  • Air Pro21700 3.7V 4800mAh Rechargeable Lithium Battery
  • Air Pro21700 3.7V 4800mAh Rechargeable Lithium Battery
  • Air Pro21700 3.7V 4800mAh Rechargeable Lithium Battery
  • Air Pro21700 3.7V 4800mAh Rechargeable Lithium Battery
  • Air Pro21700 3.7V 4800mAh Rechargeable Lithium Battery
  • Air Pro21700 3.7V 4800mAh Rechargeable Lithium Battery

21700 3.7V 4800mAh Rechargeable Lithium Battery

Encore provides 21700 4800mAh liion Battery Pack, also provides the 18650 battery pack from capacity 1500mah to 3350mAh; Also provide the battery pack, such like 1S1P, 1S2P,2S2P,2S1P,2S3P,3S2P,4S2P,7.4V, 11.1V, 14.8V,4000mah,4800mAh,5000mAh,5600mAh,6000mah.8000mAh,9000mAh,

Model:21700-4800mAh

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Product Description

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You can rest assured to buy 21700 3.7V 4800mAh Rechargeable Lithium Battery for Electric Power Machines from our factory and we will offer you the best after-sale service and timely delivery. Sincerely look forward to cooperating with you in the near future. In recently years, the factory has won the sincere love of customers by relying on its sincere reputation, professional and and enthusiastic service to convey the three excellent standard services of high quality materials, preferential prices and excellent service to our customers.

■ Features

● Rechargeable Lithium-ion Polymer(LiPO)

● Nominal capacity: 4800mAh

● Nominal voltage: 3.7V

● Standard Charge: 6.5 hours

● Charge Temp.10-45℃

● Discharge Temp.-10℃ to 60℃

● Over Charge/Discharge Protection

● Short Circuit Protection

● Dimensions: 21x70mm

● 1-year Warranty

● Cycle Life: Over 300 times

■ Applications

● Widely used in communications, factories, finance, lighting energy, digital products, 3C consumer electronics and other fields.

■ Model List

Model Number Nominal Capacity Nominal Voltage Standard Charge Time Charge Limited Voltage
EN21700 4800mAh 3.7V 6.5 hours 4.2V

■ Technical Data

Rated Capacity 5000mAh
Minimum Capacity 4800mAh
Nominal Voltage 3.6V
Charge Limited Voltage 4.2V
Discharge Cut-off Voltage 3.0V
End-of-charge Current 0.02C
Standard Charge Charge with 0.5C(960mA) up to limited Voltage, Charge with limited Voltage up to end-of-charge current.
Standard Discharge Using 0.2C(960mA) constant current discharge to the Discharge cut-off Voltage.
Maximum Continuous Charge Current 1C(5000mA)
Maximum Continuous Discharge Current 1C(5000mA)
Maximum Pulse Discahrge Current 1C
Operating Temperature Range Charge 0~45℃
Discharge -10~60℃
Storage Temperature Range -10~45℃ less than 1month
-10~35℃ less than 6month
Operating And Storage Humidity Range 75% RH or less
Weight Approx 70.0g
Open Circuit Voltage 3.75V-3.95V
Internal Impedance Single Cell: ≤80Ω
Battery Pack: ≤180Ω

■ Mechanical Diagram

■ PCM Parameter

Item Condition Specification
input Voltage input Voltage B+ to B- -0.3~+10V
Overcharge Detection voltage 4.280±0.080V
Release voltage 4.080±0.100V
Detection delay time 0.96~1.40S
Over discharge Detection voltage 2.400±0.100V
Release voltage 3.000±0.100V
Detection delay time 115.00~173.00 ms
Over discharge current Over current 1.3~4.5A
Delay time 7.2~11ms
Shortage Protection Short detection delay time 220~380us
Release Conditions Cut off load
Normal current consumption Normal current consumption of PCM Max 7.00 uA
Suggest working conditions Max continuous charge/discharge current 0.50A
Suggest working temperature -20℃~60℃
IR resistance IR of PCM ≤65.00 mΩ
NTC/ resistance 10K±1%,B=3435 6.8-12k
The size of final PCM

The length of final PCM

 The width of final PCM

16.5±0.15mm

/

The thickness of final PCM Max2.40mm

■ About Company

Dongguan Encore Energy Co.,Ltd established in the year of 2016, Encore Energy is a professional engaged in the research, development, production, sales and service of Polymer lithium-ion battery,Disposable lithium battery,Cylindrical lithium battery,Square lithium battery.Encore Energy located in Dongguan City, Guangdong Province,China with convenient transportation access.The factory size of 10,000 square meters, We have introduction of domestic advanced automation equipment, including automatic winding machine, automatic pack machine. Automatic printer and so on.

We also welcome Customized size and shaped design battery orders. Whether selecting a current battery from our current sizes or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements.

■ Certification

■ UL1642 Certified battery size:

No Cylinder/Capacity Size ( D*L)mm Certification Remarks
1 302020-80mAh 3.0*20.0*20.8 UL1642
2 302530-180mAh 3.0*25.0*30.0 UL1642
3 351213-35mAh 3.6*12.0*13.5 UL1642
4 353035-350mAh 3.5*30.0*35.0 UL1642
5 372135-250mAh 3.7*21.0*35.0 UL1642
6 381424-80mAh 3.8*14.0*22.0 UL1642 5C Fast Charge
7 401020-50mAh 4.0*10.0*20.0 UL1642
8 401030-90mAh 4.0*10.0*30.0 UL1642
9 401220-70mAh 4.0*12.5*20.0 UL1642
10 401230-125mAh 4.0*12.0*30.0 UL1642
11 402030-200mAh 4.0*20.0*29.5 UL1642 Normal and 15C High Rate
12 410929-80mAh 4.1*9.0*29.0 UL1642
13 421217-50mAh 4.2*12.0*17.0 UL1642
14 432126-190mAh 4.3*21.0*26.0 UL1642
15 451220-70mAh 4.5*12.0*20.0 UL1642
16 455080-2100mAh 4.5*50.0*80.0 UL1642
17 462558-720mAh 4.6*25.0*58.0 UL1642
18 465782-3450mAh 4.6*57.0*82.0 UL1642 4.35V
19 500930-90mAh 5.0*9.0*28.0 UL1642 5C Fast Charge
20 501015-50mAh 5.0*10.0*15.0 UL1642
21 501225-110mAh 5.0*12.0*25.0 UL1642
22 501227-110mAh 5.0*12.0*25.0 UL1642 5C Fast Charge
23 501447-280mAh 5.2*14.0*47.5 UL1642 3A Discharge
24 502030-250mAh 5.0*20.0*30.0 UL1642
25 502530-300mAh 5.0*25.0*30.0 UL1642
26 502540-500mAh 5.0*25.0*38.5 UL1642
27 503035-500mAh 5.0*30.0*35.5 UL1642
28 503040-550mAh 5.0*30.0*40.0 UL1642
29 504040-480mAh 5.0*40.0*38.0 UL1642
30 504050-1000mAh 5.0*40.0*50.0 UL1642
31 5267105-5000mAh 5.2*67.0*105.0 UL1642
32 551245-220mAh 5.5*12.0*45.0 UL1642
33 552530-410mAh 5.5*25.0*30.5 UL1642
34 553825-500mAh 5.5*38.0*25.0 UL1642
35 554270-1900mAh 5.5*42.0*70.0 UL1642
36 581038-180mAh 5.8*10.0*38.0 UL1642
37 582235-380mAh 6.0*22.5*37.5 UL1642
38 582751-825mAh 5.8*27.0*51.0 UL1642
39 601818-140mAh 6.0*18.0*18.0 UL1642
40 602025-250mAh 6.0*20.0*25.5 UL1642
41 602030-300mAh 6.0*20.0*30.5 UL1642
42 602040-450mAh 6.0*20.0*39.5 UL1642
43 602240-500mAh 6.0*22.0*40.5 UL1642
44 603048-850mAh 6.0*30.0*48.0 UL1642
45 603759-1400mAh 6.0*37.0*59.0 UL1642
46 651448-450mAh 6.5*14.0*48.0 UL1642
47 653030-500mAh 6.5*30.0*28.0 UL1642
48 653040-800mAh 6.5*30.0*40.5 UL1642
49 701250-380mAh 7.0*12.0*50.0 UL1642
50 701340-300mAh 7.0*13.0*40.0 UL1642
51 703351-1100mAh 7.0*33.0*51.0 UL1642
52 705070-3000mAh 7.0*50.0*70.0 UL1642
53 733960-1800mAh 7.3*39.0*60.0 UL1642
54 782551-1000mAh 7.8*25.0*51.0 UL1642
55 783048-1150mAh 7.8*30.0*48.0 UL1642
56 801437-370mAh 8.1*14.0*37.5 UL1642 3A Discharge
57 801534-350mAh 8.1*15.5*34.5 UL1642 3A Discharge
58 802035-480mAh 8.0*20.0*33.0 UL1642
59 802040-600mAH 8.0*20.0*40.0 UL1642
60 802230-400mAh 8.0*22.0*30.0 UL1642
61 802530-500mAh 8.0*25.0*30.0 UL1642
62 803860-2000mAh 8.0*38.0*60.0 UL1642
63 822129-400mAh 8.2*21.0*29.0 UL1642
64 833338-1280mAh 8.3*33.0*38.0 UL1642
65 102020-300mAh 10.0*20.0*20.5 UL1642
66 103450-1800mAh 10.0*34.0*50.0 UL1642
Cylindrical Battery
1 50300-45mAh 5.5*31.0 UL1642
2 65180-40mAh 6.5*18.5 UL1642 4C Discharge
3 60270-55mAh 6.0*27.0 UL1642
4 72530-200mAh 7.2*53.0 UL1642
5 75100-20mAh 7.5*10.0 UL1642
6 75300-100mAh 7.5*30.5 UL1642 3A Discharge
7 75350-130mAh 7.5*35.0 UL1642
8 08120-50mAh 8.3*12.5 UL1642
9 08160-60mAh 8.3*16.5 UL1642
10 08300-120mAh 8.5*30.0 UL1642
11 08400-180mAh 8.5*40.5 UL1642 1.2A Discharge
12 08500-260mAh 8.3*50.5 UL1642 1.5A Discharge
13 08570-280mAh 8.5*57.5 UL1642 3A Discharge
14 09130-65mAh 9.5*13.5 UL1642
15 09260-180mAh 9.5*26.5 UL1642
16 10100-60mAh 10.5*11.0 UL1642 Normal,3C Fast Charge
17 10150-80mAh 10.5*15.0 UL1642
18 10350-300mAh 10.0*35.0 UL1642
19 10380-300mAh 10.0*38.0 UL1642
20 10400-280mAh 9.8*41.0 UL1642 3A Discharge
21 10440-330mAh 10.0*44.0 UL1642
22 10540-50mAh 10.0*54.0 UL1642
23 1254-50mAh 12.0*54.0 UL1642
24 14540-85mAh 14.0*54.0 UL1642
25 13250-400mAh 13.0*25.0 UL1642
26 13300-500mAh 13.0*30.0 UL1642
27 13350-550mAh 13.0*35.0 UL1642
28 13400-550mAh 13.0*40.0 UL1642
29 13420-750mAh 13.0*42.0 UL1642
30 13450-650mAh 13.0*45.0 UL1642
31 14500-800mAh 14.0*50.0 UL1642
32 15380-680mAh 15.0*38.0 UL1642
33 16350-650mAh 16.0*35.0 UL1642
34 17350-850mAh 17.0*35.0 UL1642
35 18350-800mAh 18.0*35.0 UL1642

■ Packing and Shipment

1. Standard export carton packaging or Custom-made Package

2. Mode of Transport:

By express UPS/DHL/FEDEX/TNT (It takes 3-25 working days to arrive).

By air cargo (It takes about 1 week to arrive)

By sea shipment (It takes about 1 month to arrive)

3. Delivery 3-25 working days after payment and packing confirmation.

■ Warnings

1. Failure to observe the following precautions may result in battery leakage, explosion or fire.

- Do not immerse the battery in water or allow it to get wet.

- Do not use or store the battery near sources of heat such as a fire or heater.

- Do not reverse the positive (+) and negative (-) terminals.

- Do not connect the battery directly to wall outlets or car cigarette-lighter sockets.

- Do not put the battery into a fire or apply direct heat to it.

- Do not short-circuit the battery by connecting wires or other metal objects to the positive (+) and negative (-) terminals.

- Do not place the battery in a microwave oven or pressurized container.

- Do not use the battery in combination with primary batteries (such as alkaline batteries) or batteries of different capacity, type or brand.

- Do not use the battery if it gives off an odor, generates heat, becomes discolored or deformed, or appears abnormal in any way.

If the battery is in use or being recharged, remove it from the device or charger immediately and discontinue use.

- Do not pierce the battery casing with a nail or other sharp object, break it open with a hammer, or step on it.

- Do not attempt to disassemble the battery in any way.

- Keep the batteries out of the reach of children. If a child somehow swallows a battery, seek medical attention immediately.

- If the battery leaks and electrolyte gets in your eyes, do not rub them. rinse them with clean running water and immediately seek medical attention.

If left as is, electrolyte can cause eye injury.

- The isolated measures are needed between battery (the bare Al layer at side and top sealing) and the PCB, and also between battery and electric equipment,

especially avoid the Al layer in packing foil contact to cathode or anode (including electric equipment), otherwise this can cause battery leakage or swelling.

Hot Tags: Battery Pack, Lithium Ion Battery, LiFePO4 Battery

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