@floop2 In 24h? Or which time?
Just did a battery endurance test. Charged to 100% left on standby with screen off, bluetooth, gps and wi-fi off. no sim fitted at 10am 17th Sept, checked device at 10.05 am on 18th Sept and showed 72% charge remaining. This is with a second hand Nexus 5 with stock battery, looks good, will leave for another 24h, edit : - and at 48hrs 42% charge left.