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.
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
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
Requires: Long-term stable operation in environments from
-5°C to 50°C
Solution: Made of 1pcs 3.6V 18650 2900mAh high
temperature cells
- 3.6V 6000mAh Battery Pack for Truck GPS
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
- 3.6V 2900mAh Battery Pack for Access Control
Requires: Long-term stable operation in environments from
-5°C to 50°C
Solution: Made of 1pcs 3.6V 18650 2900mAh high
temperature cells
The High Temp 18650 Battery Climbing Performance Test
Evaluation of Test Results
Repeat steps 1~4 for a total of 10 times
Charging & Stabilization
Charge to 4.1V at 23±2℃ with 0.5C, cut-off at 0.02C, then rest for 10 minutes
High Temp Exposure
Put the sample into an experimental box with a temperature of 85°C for 6 hours
Extreme Cold Exposure
Set chamber to -40℃±2℃ for 6 hours; convert temperature within 30 minutes
Return to High Temp
Raise the box temperature to 85°C, with conversion time under 30 minutes
Repeat the Test Process
Repeat steps 1~4 for a total of 10 times
Technical Articles Related To High Temperature Batteries
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.