-40°C to 85°C High Temperature Battery Pack Solution Designer and Manufacturer

High Temperature 18650 Li-ion Battery Pack Solutions : Designed for Outdoor IoT devices

CMB offers industry-leading high-performance high temperature battery solutions for a wide temperature range -40°C to 85°C, tailored for outdoor IoT devices. When the high temperature batteries discharge at -40°C with 0.2C and 0.5C, the retention rate of the capacity is 53% and 50%.

Besides, the 18650 high temp 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 18650 high temperature lithium batteries pack at 85°C over 1000 hours, the retention rate of capacity is 95%.

Application of High Temperature Rechargeable Battery Pack

Our high temperature rechargeable Lithium battery packs are renowned for their exceptional reliability, 1500 cycles from -40°C to +85°C, providing lasting power for your innovative devices. They are used in a wide range of applications, including but not limited to those shown in the images below.

High temperature battery applications in automobiles
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CMB's Core Advantages As One High-Temperature Battery Pack Manufacturer

CMB has expertise in designing and manufacturing custom best battery for high temperature to meet specific requirements. Our high temperature battery technology ensures optimal performance in extreme environments, making us a trusted partner among high temperature battery manufacturers globally.

Excellent Engineering Team

Our professional engineering team has designed hundreds of high temperature lithium ion battery solutions for harsh outdoor environments.

Innovative Technologies

CMB is committed to advancing battery pack technology. Our heat-resistant battery maintains a 1C discharge rate even at temperatures of 85°C, thanks to innovative design and high-temperature electrolytes.

Advanced Manufacturing Process

We adhere to ISO9001:2015 standards to ensure extremely high reliability and safety. Additionally, CMB conducts rigorous testing, including temperature, humidity, impact, and vibration tests, to guarantee product quality, safety, and performance.

Successful Cases of CMB’s High-Temperature Batteries

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3.6V-6000mAh-high-temperature-battery-pack

Requires: Reliable discharge over a wide temperature range

of -40°C to 85°C

Solution: Made of 3pcs 3.6V 18650 2000mAh high-

temperature cells with pcb & NTC

Click for Details

3.6V 2900mAh High Temperature Battery

Requires: Long-term stable operation in environments from

-5°C to 50°C

Solution: Made of 1pcs 3.6V 18650 2900mAh high

temperature cells

Click for Details

3.6V 6000mAh Battery Pack for Truck GPS
3.6V-6000mAh-high-temperature-battery-pack

Requires: Reliable discharge over a wide temperature range

of -40°C to 85°C

Solution: Made of 3pcs 3.6V 18650 2000mAh high-

temperature cells with pcb & NTC

Click for Details

3.6V 2900mAh Battery Pack for Access Control
3.6V 2900mAh High Temperature Battery

Requires: Long-term stable operation in environments from

-5°C to 50°C

Solution: Made of 1pcs 3.6V 18650 2900mAh high

temperature cells

Click for Details

The High Temp 18650 Battery Climbing Performance Test

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  • Evaluation of Test Results

    Evaluation of Test Results

    Repeat steps 1~4 for a total of 10 times

  • Initial Charging & Stabilization

    Charging & Stabilization

    Charge to 4.1V at 23±2℃ with 0.5C, cut-off at 0.02C, then rest for 10 minutes

     

  • High Temperature Exposure

    High Temp Exposure

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

  • null

    Extreme Cold Exposure

    Set chamber to -40℃±2℃ for 6 hours; convert temperature within 30 minutes

  • Return to High Temperature

    Return to High Temp

    Raise the box temperature to 85°C, with conversion time under 30 minutes

  • Repeat the Test Process

    Repeat the Test Process

    Repeat steps 1~4 for a total of 10 times

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How We’ll Work Together
Production and Delivery
We’ll manufacture, QC check, and deliver your custom battery order.
Estimate
We’ll provide you with an estimate according to the volume you require.
Contract
We’ll send you a contract once you sign off on your unique battery pack design.
Design
We’ll design the ideal battery pack for your device.
Discover
We’ll ask questions via our inquiry form about your specific battery needs. Please provide us with the voltage, capacity, specific battery casing, and any special requirements at this time.
Prototype
We’ll produce and deliver a sample product for you to test and approve.
High Temperature Rechargeable Lithium Battery Pack FAQ

What size are your high temperature batteries?

We have the capability to design custom high temperature batteries in a range of shapes, sizes, and capacities to suit the specific needs of you and your equipment.

What if my operating temperature is higher than 85°C?

If your operating temperature is higher than 85°C, our Chief Technology Officer will evaluate your specific needs and design a custom battery pack to meet your equipment’s operating requirements.

Are your high temperature batteries rechargeable?

Yes, our high temperature batteries are all rechargeable.

How long is your production/delivery lead time for your high temperature battery packs?

For battery samples, if we have the desired battery or a compatible battery in stock, the delivery time is generally 4-7 days. If we don’t have the desired battery in stock, we require 2-3 weeks for production. Mass production generally takes 30 days (without stock). If there are enough batteries in stock, it will take about 1-2 weeks to fulfill an order.

Tailored Customization

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

Timely Delivery

Our efficient production and distribution process gets your product delivered in a timely manner.

Quality Guarantee

We stand by our products and guarantee you’ll be happy with your purchase.