What stands out . Rechargeable Battery for electriQ Wireless Video Doorbell Camera Gen 1 and Gen 2Charge within the doorbell via micro USB or in a battery chargerExtends Video doorbell power life up to 3 monthsEasy to swap the battery in or out The detailsExtend the battery life of your electriQ Wireless Video doorbell with this useful addition. Adding up to an extra three months there’s really no need to worry about your doorbell quickly running out of power. Also ideal as spares you can replace the set in your doorbell and never be without power. The batteries can easily be charged in the doorbell via micro USB or in a battery charger (not included).Compatiable with all current models of the electriQ Wireless Video Doorbell . Essential info . Charging method . Micro USB via doorbell / battery charger Battery type . Lithium ion Compatible with eiQ-SMVDBLeiQ-SMVDBLBeiQ-SMVDBL-V2 .