-40℃~85℃ Wide Temperature Range Battery Technology

Lithium-ion batteries are commonly used in outdoor systems, such as IoT sensor devices, IoT gateway devices, GPS tracking devices, and camera monitoring devices. Batteries used for these types of applications must be able to provide power safely and effectively in extremely cold and/or hot temperatures. CMB has developed advanced technology that allows our wide temperature range of lithium-ion batteries to operate effectively at an impressive temperature range of -40˚C to 85˚C (-40℉ to 185℉). With nearly 15 years of experience crafting batteries that work reliably in extreme environments, CMB is equipped and devoted to meeting the challenging needs of any application.

CMB’s Wide Temperature Range Li-ion Battery Features

CMB’s wide temperature range lithium-ion batteries offer an array of advantageous features that result in a battery that operates safely and reliably at temperatures of -40˚C to 85˚C (-40℉ to 185℉).

Battery Cell Specifications

To start, here is a detailed look at the impressive specifications of our wide temperature range cells. As demonstrated in the charts below, our wide temperature range battery cells offer a long cycle life and high continuous discharge rates.

3.6V 2900mAh Wide Temperature Cell Basic Specifications

3.6V 2000mAh Wide Temperature Cell Basic Specifications

Dependable Discharge & Charge Performance At Different Temperatures

CMB’s wide temperature range Li-ion cells have solid charge and discharge performance when operated in an expansive temperature range. Direct current resistance (DCR) is a key factor that influences Li-ion battery discharge efficiency and output power ability. As demonstrated in the graph below, DCR Test at Different Temp.

Excellent Aging Performance At 85˚C (185℉)

CMB’s wide temperature range lithium-ion batteries undergo an aging test for 1,000 hours at the extremely high temperature of 85˚C (185℉), with excellent performance results.

High Capacity Efficiency At -30˚C (-22℉)

CMB’s wide temperature range battery maintains high capacity efficiency when discharged at the extremely low temperature of -30˚C (-22℉).

Safe to Use at 150˚C (302℉)

CMB’s wide temperature range lithium-ion batteries are subjected to heating tests at 150˚C (302℉), and they successfully pass with no fires and no explosions occurring. For these tests, the battery is heated in a gravity convection or circulating air oven with an initial temperature of 20 ±5℃. The temperature of the oven is raised at a rate of 5 ±℃ per minute to a temperature of 150 ±2℃ and remains at that temperature for 60 minutes. The sample is then returned to room temperature (20 ±5℃) and examined.

CMB’s wide temperature range lithium-ion batteries are used in battery packs that power an array of devices. Together, we can build a custom battery pack that performs efficiently, reliably, and safely at a wide temperature range that suits your specific application needs. Ready to begin your custom battery pack journey?