not until you charge it for days. if, so your backup will go down. To prevent it you should charge you battery up to 80% and let it discharge up to 50% and charge it again. this will improve the backup time and keep the battery safe. you can get more info here http/batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http/www.wired.com/2013/09/laptop-battery/
not until you charge it for days. if, so your backup will go down. To prevent it you should charge you battery up to 80% and let it discharge up to 50% and charge it again. this will improve the backup time and keep the battery safe. you can get more info here http/batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http/www.wired.com/2013/09/laptop-battery/