Rechargeable Li-ion Battery

Product Details:

21700 RECHARGEABLE LITHIUM-ION BATTERY
A standard 21700 lithium rechargeable battery has a circumference of 21mm with a height of 70mm. The main advantages of the LFP 21700 lithium-ion battery cells are that the battery capacity will increase by 35%, the energy density of the battery system will increase by about 20%, the system cost is expected to decrease by about 9%, and the battery weight is expected to the system will drop by about 10%.
SPECIFICATION OF LITHIUM 21700 CHARGING CELLS
Item
Rated voltage (V)
Nominal capacity (mAh)
Maximum Continuous Discharge Rate（C）
Life cycle (times)
Lithium-Ion 21700 rechargeable cell
3.7V
3000mAh
10C
＞500
3.7V
4000mAh
5C
＞500
3.7V
4600 mAh
5C
＞1500
3.7V
5000mAh
5C
＞1500
BATTERY CAPACITY 21700
The 21700 lithium battery was designed as a larger and higher capacity alternative to the 18650 battery. As with the 18650, the 21700 LFP is rated at 3.6/3.7V. The 21700 lithium battery was designed to replace the 18650 battery in the EV battery pack, it has a capacity between 3000 and 5000 mAh.
The most obvious advantage of using a 21700 lithium ion cell compared to an 18650 drone battery is that the higher density means more energy available, which will keep your tools and equipment running longer. We see that 18650 batteries for power tools have a capacity between 1.5Ah (1500mAh) and 3.0Ah (3000mAh). The 18650 battery has reported issues and the 2.5Ah (2500 mAh) battery seems to be the first choice for most manufacturers.
On the other hand, the 21700 rechargeable lithium battery starts around 3.0 Ah (3000 mAh) and goes up to 4.0 Ah (4000 mh). This is why the compact (1P) pack we see is labeled 3Ah or 4Ah up to 12Ah (3P).
ARE 21700 BATTERIES BETTER THAN 18650?
18650 lithium battery cells are longer and have a wider diameter than AA batteries. It is generally 3.6 / 3.7 volts and is rated at 2300-3600 mAh. The 21700 lithium ion cell is mainly designed as a replacement for 18650 lithium batteries for sale. As with the 18650, the 21700 lithium-ion battery is rated at 3.6/3.7V and has a capacity of 4,000 to 5,000 mAh.
21700, 18650, 20700, etc., just refer to the physical size of lithium ion batteries. The U 18,650 has a diameter of 18 mm and a length of 65 mm. The Lithium 21700 measures 21mm x 70mm. Although the explanation is simple, the differences are profound. This is easy to see with quick volume calculations.
Another 5mm length and 3mm diameter 21700 cell battery for sale increased our volume by 47%. This corresponds to a space of more than 7,700 cubic millimeters, which is used to fill the anode, cathode and electrolyte with materials that can transfer energy.
APPLICATION 21700 LITHIUM RECHARGEABLE BATTERY
Due to the high safety performance, high energy density and long life of the 21700 lithium ion battery, the 21700 LFP power tool battery is now used in new energy vehicles. As a professional 21700 lithium battery supplier, Great Power provides a variety of electric vehicle battery types available for use in new energy buses, new extended range electric vehicles, coaches, blue light trucks and so on.

Additional Information:

• Delivery Time: 1 DAY

Product Details:

A lithium- ion battery or Li- ion battery is a type of rechargeable battery composed of cells in which lithium ions move from the negative electrode through an electrolyte to the positive electrode during discharge and back when charging. Li- ion cells use an fitted lithium emulsion as the material at the positive electrode and generally graphite at the negative electrode. Li- ion batteries have a high energy viscosity, no memory effect( other than LFP cells)and low tone- discharge. Cells can be manufactured to prioritize either energy or power viscosity.They can still be a safety hazard since they contain ignitable electrolytes and if damaged or inaptly charged can lead to explosions and fires.Features: 

1. High energy density
2. High working voltage for single battery cells.
3. Pollution-free
4. Long cycle life
5. No memory effect
6. Capacity, resistance, Voltage, and platform time consistency is good.
7. Good consistency and low self-discharge.
8. Lightweight, small size
9. Shape: Cylindrical Battery
10. Battery Type: Lithium-Ion Battery
11. High performance and capacity
12. Flat top to suit many devices fitting.

Specifications:

1. Model: NMC 18650
2. Cell Type: (1C)
3. Watt-hours: 9.36Wh
4. Nominal capacity: 2200mAh by standard charge and discharge 2200mAh
5. Minimum capacity: 2150mAh by standard charge and discharge 2150mAh
6. Nominal voltage: 3.60 V
7. Charge cut-off voltage: 4.20 V
8. Discharge cut-off voltage: 2.75 V
9. Max charge current: 1C (25???,not for cycle life )
10. Max discharge current: 3C (25???,not for cycle life )
11. Internal resistance: ≤30 mΩ(AC Impedance, 1000 Hz)
12. Weight: ≤ 48g

Additional Information:

• Delivery Time: 1 Day