the science behind
Why is this so important?
Charging is more or less like compressing a spring – the more you push it every time to the maximum, the more deformation you introduce and the spring will cease to do its normal route after a while.
This table, courtesy of Battery University, shows the direct link between discharge cycles and the voltage that your phone takes the battery to when charging.
Battery expert company Cadex says that keeping a lithium ion battery fully charged and at high temperature is even worse than cycling it (going from zero to 100%).
This information and our own experience with charging/discharging lithium ion batteries are the base for Chargie.
The idea that limiting the charge to 90% can actually skyrocket the lifespan of the battery is one of the most exciting facts since the discovery of the lithium ion chemistry itself.
Basically, you can reduce the need for throwing the phone or performing expensive repairs to it and also a significant downtime. Having it perform as new for many years to come is also exciting for the prospective buyer, who will get good working technology for a very good deal.
And this is also a win-win for the planet, since you will be prolonging the lifetime of an object, which will not go to recycling or worse, to a landfill (which happens realistically in most situations). Extending the life of a battery is a very, very green thing to do.
This wasn’t possible until a few years ago. Smartphone batteries were small enough not to allow a charge of less than 100% for practical reasons, but now phones last for a bit more than a day, even when used heavily, and you charge them at night anyway. So why not do the right thing and keep them healthy?
Proximity-activated Lamp Mode
Features and Tech
Chargie relies on Bluetooth 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.
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.