These days smartphones and tablets are launched with some awesome features, better processors and more which leads to battery drainage. If you are having iPhone, iPad or iPod running on iOS 7 and you are concerned about battery life, you should try BattSaver, a battery saving Cydia tweak which has been updated for iOS 7.
Apple introduced Haswell processor for Macbooks which brings better performance and improved battery life. Haswell processor provides a battery life of 9 hours to Macbook Air 11-inch.
Many users face the issue of battery drainage on their iOS 7 devices, though there are many jailbreak tweaks which will solve the problem, however BattSaver is one of the best Cydia app for the same.
BattSaver is a jailbreak tweak, hence you need to first jailbreak your device before using it. If you haven’t jailbroken your device, download Evasi0n Jailbreak for iOS 7.0.6.
BattSaver doubles the battery by managing the battery drainage components on your device.
The battery is drained my mostly GPRS, EDGE, 3G, 4G, LTE, Wi-Fi components and BattSaver cleverly manages these radios to optimize the battery usage of your device.
You can use this jailbreak tweak to select your battery saving strategies-
iMessage friendly (disable radios except only EDGE)
Normal(disables radios generally)
Aggressive (disables data when Wi-Fi connected)
Ultimate (you will have to manually enable the radios)
Custom (you choose)
BattSaver for iOS 7 is available for a download from the BigBoss repo at $3.99.