Get more battery life from your phone.
Sustainability
dfndr battery helps extend battery life by closing power-draining apps running in the background and adjusting the brightness of your phone screen.
Quick optimization
One-click closes unnecessary app activities and saves battery power.
Battery cooler
Protect your CPU and other vital phone components from potential damage by lowering the temperature of your battery.
Charge monitor
Monitor your battery and prevent overcharging with real-time notifications.
Screen saver
Adjusts your screen's light output without compromising brightness and visibility.
dfndr battery reviews
See what other users have to say about us.
This is the only battery saver that actually closes apps and doesn't allow them to restart. Excellent app.
Michael Dezutti
This app actually works! Now my battery isn't draining even when I'm playing
Kenji Yasuda
Simple and very good. Surely better than the two famous battery applications. Smart, keep it up.
Maria Francis
It really helps your battery life a lot.....thanks Psafe for all your hard work...!!!!!!!
Jairo Garcia
Love the app works great. It is great at optimization and I really like the way it turns off the apps in the background that I'm not using??????
Stephanie Beard
Easy to use! Saves a lot of energy by using less battery!
Holly Treloar
Best battery saver app ever. That I personally use. Really helps save on your battery life.
Deseree Oshea
Quick tips to make your battery last longer
You can save battery power by following these simple steps.
CLOSE APPS RUNNING IN BACKGROUND
Idle apps that are not being used continue to consume power and drain your battery. Closing them will not only extend battery life, but improves the speed of your phone. Super Optimization is your one-touch solution that quickly finds and closes apps you are not currently using.
COOL DOWN CPU
Cool down your CPU, conserve power and avoid lag with one click.
CONTROL BATTERY USAGE
Total Charge monitors your battery charging time to prevent overloads and damage to critical components.
Top-Rated Security
For Everyone
dfndr received top scores from AV-Test Institute more than 20 times.
Our apps are powered by artificial intelligence and machine learning technology to protect what matters to you most.
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