High Temperature 18650 Lithium Battery Pack

High Temp 18650 Lithium Battery Pack Solution

 

The high temp 18650 batteries are widely utilized for outdoor monitor systems, car GPS trackers and IOT devices.
When the high temp batteries discharge at -40°C with 0.2C and 0.5C, the retention rate of the capacity is 53% and 50%. Besides, the high temp 18650 battery has astonishing performance at 85°C. When the battery discharges 0.5C at 85°C, the retention rate of the capacity is 100%.
CMB’s engineering team tested the high temp 18650 battery pack at 85°C over 1000 hours, the retention rate of capacity is 95%.

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The High Temp 18650 Battery Climbing Performance Test

  • Charging Preparation

    Initial Charging & Stabilization

    Charge the battery to 4.1V at an ambient temperature of 23±2℃ at a constant current and voltage of 0.5C, with a cut-off current of 0.02C, and leave it aside for 10 minutes

  • High Temperature Exposure

    High Temperature Exposure

    Put the sample into an experimental box with a temperature of 85°C for 6 hours

  • Extreme Cold Exposure

    Extreme Cold Exposure

    Adjust the temperature of the experimental chamber to -40℃±2℃ and keep it for 6 hours; the temperature conversion time should not be more than 30 minutes

  • Return to High Temperature

    Return to High Temperature

    Raise the temperature of the experimental box to 85°C again, and the temperature conversion time should not be more than 30 minutes

  • Iterative Testing

    Repeat the Test Process

    Repeat steps 1~4 for a total of 10 times

  • Test Result

    Evaluation of Test Results

    No fire, no explosion, no leakage.

Custom 18650 High Temp Battery Pack Solutions

To learn more about our high temperature 18650 battery pack solutions, click on the item titles below.
3.6V 6000mAh high temperature 18650 2000mAh battery pack

Detail:

  • Made of 3pcs 3.6V 18650 2000mAh high-temperature cells
  • Application for truck GPS
  • Discharge at -40°C ~85°C
No. Item Parameter Remark
1 Nominal Voltage 3.7V 3.6V/Cell
2 Nominal Capacity 6Ah @0.2C
3 Minimum Capacity 5.85Ah /
4 Shipment Voltage / /
5 Initial Internal Impedance ≤200mΩ AC 1KHZ
6 Standard Charge Voltage 4.2V 4.2V/Cell
7 Standard Charge Current 1.2A @0.2C
8 Max. Charge Current 3A BMS Limit
9 Standard Discharge Current 1.2A @0.2C
10 Max. Discharge Current 3A /
11 Burst Discharge Current / /
12 Discharge Cut-off Voltage 2.75V 2.75V/Cell
13 Cycle Life ≥500 cycles Retention: ≥80%
14 Charge Temperature 0°C~60°C Standard Charge
15 Discharge Temperature -40°C ~85°C Standard Discharge
16 Storage Temperature -40°C~ 85°C ≤15 Days
-40°C~ 60°C ≤30 Days
-20°C~ 45°C ≤3 Months
0°C ~ 25°C ≤1 Year
17 Weight About 180g /
18 Special Request / /

The discharge curve at -40°C

18650 High Temperature Battery Discharge Curve at -40°C

The charge curve at 85°C

18650 High Temperature Battery Charge Curve at 85°C
3.6V 2900mAh high temperature 18650 battery

Detail:

  • Made of 1pcs 3.6V 18650 2900mAh high temperature cells
  • Application for outdoor camera system
  • Discharge at -40°C ~85°C
No. Item Parameter Remark
1 Nominal Voltage 3.7V 3.6V/Cell
2 Nominal Capacity 2900mAh @0.2C
3 Minimum Capacity 2800mAh /
4 Shipment Voltage / /
5 Initial Internal Impedance ≤100mΩ AC 1KHZ
6 Standard Charge Voltage 4.2V 4.2V/Cell
7 Standard Charge Current 0.58A @0.2C
8 Max. Charge Current 1A BMS Limit
9 Standard Discharge Current 0.58A @0.2C
10 Max. Discharge Current 1.45A /
11 Burst Discharge Current / /
12 Discharge Cut-off Voltage 2.75V 2.75V/Cell
13 Cycle Life ≥500 cycles Retention: ≥80%
14 Charge Temperature 0°C~60°C Standard Charge
15 Discharge Temperature -40°C ~85°C Standard Discharge
16 Storage Temperature -40°C~ 85°C ≤15 Days
-40°C~ 60°C ≤30 Days
-20°C~ 45°C ≤3 Months
0°C ~ 25°C ≤1 Year
17 Weight About 70g /
18 Special Request / /
3.6V 6000mAh High Temperature 18650 Battery
3.6V 6000mAh high temperature 18650 2000mAh battery pack

Detail:

  • Made of 3pcs 3.6V 18650 2000mAh high-temperature cells
  • Application for truck GPS
  • Discharge at -40°C ~85°C
No. Item Parameter Remark
1 Nominal Voltage 3.7V 3.6V/Cell
2 Nominal Capacity 6Ah @0.2C
3 Minimum Capacity 5.85Ah /
4 Shipment Voltage / /
5 Initial Internal Impedance ≤200mΩ AC 1KHZ
6 Standard Charge Voltage 4.2V 4.2V/Cell
7 Standard Charge Current 1.2A @0.2C
8 Max. Charge Current 3A BMS Limit
9 Standard Discharge Current 1.2A @0.2C
10 Max. Discharge Current 3A /
11 Burst Discharge Current / /
12 Discharge Cut-off Voltage 2.75V 2.75V/Cell
13 Cycle Life ≥500 cycles Retention: ≥80%
14 Charge Temperature 0°C~60°C Standard Charge
15 Discharge Temperature -40°C ~85°C Standard Discharge
16 Storage Temperature -40°C~ 85°C ≤15 Days
-40°C~ 60°C ≤30 Days
-20°C~ 45°C ≤3 Months
0°C ~ 25°C ≤1 Year
17 Weight About 180g /
18 Special Request / /

The discharge curve at -40°C

18650 High Temperature Battery Discharge Curve at -40°C

The charge curve at 85°C

18650 High Temperature Battery Charge Curve at 85°C
3.6V 2900mAh High Temperature 18650 Battery
3.6V 2900mAh high temperature 18650 battery

Detail:

  • Made of 1pcs 3.6V 18650 2900mAh high temperature cells
  • Application for outdoor camera system
  • Discharge at -40°C ~85°C
No. Item Parameter Remark
1 Nominal Voltage 3.7V 3.6V/Cell
2 Nominal Capacity 2900mAh @0.2C
3 Minimum Capacity 2800mAh /
4 Shipment Voltage / /
5 Initial Internal Impedance ≤100mΩ AC 1KHZ
6 Standard Charge Voltage 4.2V 4.2V/Cell
7 Standard Charge Current 0.58A @0.2C
8 Max. Charge Current 1A BMS Limit
9 Standard Discharge Current 0.58A @0.2C
10 Max. Discharge Current 1.45A /
11 Burst Discharge Current / /
12 Discharge Cut-off Voltage 2.75V 2.75V/Cell
13 Cycle Life ≥500 cycles Retention: ≥80%
14 Charge Temperature 0°C~60°C Standard Charge
15 Discharge Temperature -40°C ~85°C Standard Discharge
16 Storage Temperature -40°C~ 85°C ≤15 Days
-40°C~ 60°C ≤30 Days
-20°C~ 45°C ≤3 Months
0°C ~ 25°C ≤1 Year
17 Weight About 70g /
18 Special Request / /

More Technical Articles On High Temperature Batteries

High Temperature 18650 Lithium Battery Pack FAQ

Why the high temperature battery can work at -40℃ ~85℃?

Because of the unique positive and negative electrode formulas which are compatible with special electrolytes to ensure that the battery can work at low temperatures and to ensure that no side reactions will occur between the positive and negative electrodes and the electrolyte at high temperatures.

Can we get the customize high temperature battery?

Of course, please send me your specific needs. Our engineering team will evaluate the battery pack solution for you.

What are your high temp rechargeable batteries utilized for?

The high temp batteries are utilized for outdoor monitors and medical devices monitor systems.

Tailored Customization

Our design team can create custom battery designs for just about any device or machine.

Timely Delivery

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