App Profile: Battery and charger test

Mai Ogawa

Rating: 4/5

I like this app. Seems fairly accurate to me, although some people may have had different opinions about that. I would like more is a stat showing how much time it’ll take to charge the phone completely based off how much power is left and the rate of charging. I would also like a stat showing how much time I have left before my battery dies based off the power usage (if charging at the same time, this will likely not make a be an issue assuming the cord and charger are alright, but a stat like this would be a good tell if your charger/cord/source of power is bad too). These are currently missing, but I feel they would be very useful, especially for those who are always on the go.

FalconFour

Rating: 3/5

This app, as shown in the screenshots but just as bad in the app (erroneous "correction" to "mA/h"), displays a fundamental misunderstanding of electrical principles. "mA" is a measure of current, speed, power, like "miles per hour" (rate of change), whereas "mAh" is a measure of capacity, storage, energy, like "miles driven". I just came across this app to see the temperature of the phone/battery, but just couldn't give it a pass going this long without the author understanding the principles behind the app they wrote.

Cablegut

Rating: 5/5

The mislabeling of milliamperes as milliamp “hours”notwithstanding, the information is clear and accurate, allowing for testing of chargers/cords - as well as answering my questions about how quickly my battery is being depleted. A little math and understanding of electrical basics (Ohm’s law) and you’ll know a lot about your mobile devices’ battery health, your chargers and cords, and how long your battery will last under varying conditions. Ads are not as bad as many free apps. I might even pay to go ad free.