Features Exchangeable battery for ALPEN models APEX Super fast change thanks to quick-release flap on APEX 6 hours battery life (at temperature range of 20Adeg) Description Replaceable power supply for the ALPEN APEX thermal imagers. Thanks to the exchangeable batteries, you can replace them in your ALPEN APEX thermal imager in less than 10 seconds and be ready for use again immediately. The battery life is approx. 6 hours. Specs Item Number ALP3010090 Capacity 3500 mAh CA Residents: Prop 65 WARNING(S)