CR123A spiral wound Lithium batteries were designed for use in digital cameras and similar low discharge rate consumer electronics. The cell has the advantage of high energy density than more traditional battery chemistries, such as alkaline; however, when used in devices such as high intensity flashlights which have a high rate of discharge, internal cell heat can build up. This can result in explosive conditions. The Duracell Battery Company developed the first re-settable current and Thermal Protection System. All ASP batteries incorporate a similar PTC (Positive Thermal Coefficient) device and pressure relief vent. If an ASP battery short circuits or discharges at currents above their design limit, the PTC causes the cells internal resistance to increase, limiting the amount of current that can be drawn and keeping the internal cell temperature within safe limits. The pressure relief vent activates to relieve excessive internal pressure. ASP's CR123A Batteries are stable in a wide range of temperatures and have a shelf life of ten years. These batteries come with interconnecting link cases, which provide protective storage, organization, and transport of the batteries. When using CR123A Lithium batteries in a high discharge rate device such as a flashlight, always insist on PTC batteries.
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