Boasting an impressive energy density of up to 120Wh/kg, HCB Li-polymer batteries deliver robust power in a compact form. Operating seamlessly between 2.5-4.2V with an exceptional temperature range of -40℃ to 85℃, they excel in diverse environments. With a minimal annual self-discharge rate of ≤3% at room temperature, these batteries ensure long-term reliability for your critical applications: Smart wearable devices, bluetooth speaker, GPS tracker, portable medical device, IoT sensors, electric two-wheelers.