Puck brings an ultra low power mode to jailbroken devices

Some people are more battery conscious than others, but some folks truly don’t mind letting their battery level get so low that it lurks in the danger zone — a state of inevitable automatic shutdown.

If you align with the latter camp and you’re using a jailbroken device, then this may pose problems for tweak reliability and usability because modern jailbreaks tend to be semi-tethered or semi-untethered. With that in mind, a newly released and free jailbreak tweak called Puck by iOS developer Litten may be a handy addition to handsets that see deeper battery drain than others on a regular basis.

Puck is like free insurance, as it can give you the peace of mind of preventing your pwned iPhone from needing to be connected to a computer to be re-jailbroken in the event of an accidental low battery-triggered shutdown. It does this by putting your handset into a power-saving state when the battery level gets too low, which helps keep it afloat just a while longer.

If the idea sound familiar, that’s because a lot of jailbreak developers have tired their hands at creating a better power-saving mode than what iOS’ native Low Power Mode can offer out of the box. SafeShutdown was one, and if you fancy more of a deep-sleep or truer hibernation mode, then Sentinel is probably a better option.

Puck is highly configurable. Users will find those options in the Settings app after installation:

Here, you can:

  • Toggle Puck on or off on demand
  • Choose a shutdown percentage
  • Choose a wake percentage
  • Wake with the volume up button
  • Wake when plugged in
  • Respring after waking
  • Allow music playback
  • Allow volume level changes
  • Show a warning notification before entering extremely low power mode
  • Choose a battery percentage when you’ll receive the notification
  • Allow phone calls
  • Shut down after ended phone call
  • Respring to save changes
  • Reset options to their defaults

At first glance, it looks like the developer put a lot of thought into Puck when making it to ensure that an iPhone could still be operable in extreme situations. For example, you can still take a phone call or override the power-savings mode with a volume button press or by plugging it into a power source. Other than that, the ultra low power mode setting will help preserve your semi-tethered or semi-untethered jailbreak until you can get to a charger.

Those interested in trying the new Puck tweak can download it for free from Litten’s repository via their favorite package manager. Puck supports jailbroken iOS 13 devices.

If you aren’t already using Litten’s repository, then you can add it to your preferred package manager with the following URL:


Do you plan to give Puck a try? Let us know in the comments section below.