Your Phone's Battery
Every Time You
- you know them already -
redefining phone charging
What is it?
Chargie is world's first charge limiting system that stops phone battery degradation automatically, while you're sleeping.
Simply put, it "pulls the plug" when the charge reaches your desired percentage, thus giving you total control over how much energy the phone takes in and its battery lifespan.
short guide to simplicity
Chargie is Easy to Use
1. Connect it between
your regular charger and phone or
wireless charging pad
2. Install the Chargie app
from Google Play
3. Connect to "chargie" via Bluetooth and use the battery slider to set the charging limit in the app.
4. Go to sleep
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Chargie Founder Edition – Blue
All battery manufacturers state that charging your phone every night to 100% and keeping it like this for 8 hours stresses the battery and shortens its lifespan.
Chargie is the only Bluetooth switch that can physically halt the charging process at your chosen percentage (the lower, the better), so that the battery will actually outlast the phone. This will allow you to recycle your device by donating it to someone in need (grandma, elder, kid etc) so that its carbon footprint is greatly reduced.
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What Actual Customers Say
- you can check these reviews are real by visiting the Google Play app page -
why chargie works
The Science Behind
A regular phone typically charges up to 100% and then keeps the battery in that very high state (around 4.35 volts) until the user pulls the plug. Indeed, the battery is protected from overcharging by its internal circuitry (it would catch fire otherwise), but not in an optimal way.
The above-mentioned practice (also called trickle charging) induces a voltage-related stress and damages the internal lithium lattice of the battery, at a molecular level.
Limiting the charge level below 100% or releasing it once it has topped up has hugely beneficial effects for the lifespan of the battery. An optimized charging process can take a normal phone battery from 250 cycles to more than 1000, before it shows signs of degradation (tables courtesy of batteryuniversity.com ).
This has been well documented by the scientific community. Electric car manufacturers like Tesla already avoid charging to 100% by default. They say it’s fully charged, but it’s actually less. Microsoft has even implemented charge limiting in Surface tablets , Sony in latest-generation Xperia and Lenovo in laptops. Apple has just implemented this function in iOS13.
They depend on the depth of discharge, time of charge and temperature. Lithium Ion units are very sensitive to the depth of discharge. The lower you go, the worse it gets for the battery. Some papers refer to cycles as a continuous charging process from zero to 100%. Others add mini-cycles (like from 30% to 50%) to this equation, but they’re not equal in terms of battery degradation, since five or six 40-80% cycles are not doing the same harm as one 0-100 cycle and then keeping it fully charged. 
Practically, it is best if you only charge to 90%. If you do so, Chargie will apply the hysteresis you set, and the practice will yield much better results in the long run, from both a battery lifespan and daily usability perspective.
Ideally, the lower the daily charge, the better it is for the battery.
By applying hysteretic charging, the risk of battery swelling and fires is greatly reduced (unless the battery itself has a physical defect). Read more about it on Google.
Chargie helps you Reuse and Recycle
Prolonging the life of your stuff is the best thing to start caring about
The electronics industry is one of the greatest polluters worldwide, and it’s affecting the health of everyone, including yours and your children’s.
After you upgrade, donate your old phone to someone in need, who’s not as picky with tech as you are.
That person may be using it for many years ahead, and will not buy a new one! That’s huge resource saving! Give a good battery and the best experience – if you’re doing it anyway.’
Stop complaining your phone is already empty by 2pm after only a few months.
What Customers Use Chargie For
Features and Tech
Chargie relies on Android, Bluetooth Low Energy and a powerful 4.8A electronic switch to deliver current from the charger to the phone, and to stop it when the charge level has reached the desired value.
Here are some of its unique characteristics:
Service & Warranty
If you use it properly (don’t overload), Chargie will last a lifetime. However, should you have any issues, we’re here to help by repairing or replacing your defective unit, for free, in the first two years.
If for whatever reason you’re not satisfied with Chargie within 30 days, just ask for a refund.
*if ordered during a weekday (Mon-Fri, 8am – 3pm EEST), except local legal holidays
** in case of refund request, you have to return the product via regular post. We will refund you the product price minus the shipping fees we paid to the carrier.
Message from the founder
Building something from scratch is not an easy thing.
You don’t really know what it’s going to look like, how it’s going to behave, what the real challenges are, but that’s the game.
No matter how much you think you know about your product, truth is you only have an idea about it.
Your product grows up with you, takes you back and forth, left and right. It hits you against the wall and then comes back even better, each time.
That’s why creativity and entrepreneurship are embraced by a few crazy ones who either have the guts or the unconsciousness to pursue their lifelong dreams at the risk of everything.
Money is just a tool for them, anyway.
Ovidiu Sandru, founder