... not charging) Alarm current:<120mAl Built-in Li-Ion backup battery: 3.7V 800mAH(rechargeable), Standby: around 24 ... set, 2 wireless remote control,1 pir sensor,1 door sensor, 1 adaptor,1 backup battery, 1 siren. ... the worldUPS3-5 daysAll of the worldLi-Ion backup battery 3.7V 800mAH home security system with ... Lcd touch screen Li-Ion backup battery 3.7V 800mAH home security system with ...