MacBook 低電量時 自動關機 問題

MBPR 2012的
換新電池後
一開始有兩次電量在30%就自動關機

充飽100%持續一陣子之後
試過重置SMC和設定Energy Saver
改成用到7%進入關機

沒換新電池之前，低電量約20%時, 電池icon會變成紅色的提示,
換新電池之後就沒有這種改變了？

請問一般來說, MBPR 大概用電剩多少%才會進入關機？

另外,電池才換沒幾天,但是電池循環次數,平均1天增加1次,這樣正常嗎？

補充一下其他資訊
Battery Information:
...
Hardware Revision: 3
Cell Revision: 1150
Charge Information:
Charge Remaining (mAh): 3714
Fully Charged: No
Charging: No
Full Charge Capacity (mAh): 7717
Health Information:
Cycle Count: 5
Condition: Normal
Battery Installed: Yes
Amperage (mA): -1723
Voltage (mV): 11107

System Power Settings:

AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
Wake on AC Change: No
Wake on Clamshell Open: Yes
Wake on LAN: Yes
AutoPowerOff Delay: 28800
AutoPowerOff Enabled: 1
DarkWakeBackgroundTasks: 1
Display Sleep Uses Dim: Yes
GPUSwitch: 2
Hibernate Mode: 3
PrioritizeNetworkReachabilityOverSleep: 0
Standby Delay: 4200
Standby Enabled: 1
Battery Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 3
Wake on AC Change: No
Wake on Clamshell Open: Yes
AutoPowerOff Delay: 28800
AutoPowerOff Enabled: 1
Current Power Source: Yes
DarkWakeBackgroundTasks: 0
Display Sleep Uses Dim: Yes
GPUSwitch: 2
Hibernate Mode: 3
Reduce Brightness: Yes
Standby Delay: 4200
Standby Enabled: 1