iso-BTC is a stand alone calorimeter for generating thermal management data under isothermal conditions.  It measures the amount of energy generated during discharge while holding the battery temperature constant. The battery pack is integrated with a cycler so that different charging/discharging routines can be programmed.

This calorimeter enables the maximum safe temperature, maximum discharge rate (current) and maximum overchage (voltage), to be determined, above which thermal runaway explosion can occur, in different sizes and shapes of batteries.

Specially designed for safety testing of large and small scale (Li-ion & similar) batteries and components, the BTC is an evolution on standard "ARC-type" (TM) adiabatic calorimeters.