Celestron Thermocharge - Video Review Celestron Thermocharger - Stay warm on the trail and keep your portable electronic devices fully charged with the ThermoCharge power pack and hand warmer. ThermoCharge heats up quickly and reaches a maximum of 113 degrees Fahrenheit (45 degrees Celsius). The 4400 mAh rechargeable lithium battery provides up to an impressive 6 hours of … [Read more...] about Celestron Thermocharge – Video Review