Inaccurate all around Right from the start, the description lies about the nature of lithium batteries - they CANNOT be "overcharged". Ever. Unless the device is malfunctioning or the battery is damaged, lithium batteries by their design cannot be overcharged no matter what "charger" (power supply) you use with it nor what software you use, how long you have it plugged in, or anything. Lithium batteries *must* be voltage-regulated in order to operate. Charge tapers off and stops at 4.2V as "100%", and ends at around 3.2V for 0% (some use 3.0V to compensate for voltage drop while under load). This is common to all devices that use lithium batteries - if you go over 4.3V, you physically damage the battery. The charge is controlled by the phone hundreds of times a second, and won't go over that voltage unless it's malfunctioning. Overcharging isn't an issue - but keeping it at 100%, leaving it fully discharged, or exposing it to high heat (120F+) will damage it. Lithium likes to stay 30-70% charged. This is common knowledge easily researched online. The app does nothing - it just says "device unplugged". I just want a simple app to read /sys/class/power_supply/battery/current_now in near-realtime.
30 Minutes to Estimate I can't say whether the app shows accurate charging current, since I haven't found another app yet that works on the Verizon variant of the S3. But there are so many other issues that it's not worth using even if it is accurate: - took 30 minutes to perform its analysis while charging from the USB port of a computer! (Did this twice just to cross check. Current shown was 243 mA, which seemed low.) - took multiple Back button presses to exit the app - web page is formatted horribly; essentially unreadable
Poor documentation, takes very long to analyze I'd appreciate more documentation - the app is pretty bare-bones. Also it has taken up to 20 minutes or longer to complete the analysis. I have a Samsung Galaxy S4. If I want to check another charging device it seems that I must close the app, unplug the cable, re-launch the app and re-apply the cable. Is that correct? I could not find any documentation to tell me anything else about the operation or the developer.
Battery health question What is considered a healthy battery indication? What are the high and low value values that should be considered healthy? Is the Samsung Tab 3 supported?
So far so useless the model button is covering up the select button. Select flashed when touched, but nothing happens
No devices liste I see an empty screen saying select device, but there is no select button, drop-down or whatever anything else. Menu button shows nothing more. Please fix
**BATTERYMETER WILL TAKE A WHILE TO FIND OUT THE CHARGING CURRENT ACCURATELY. DEPENDING ON THE CHARGING CURRENT VALUE, IT MIGHT TAKE MANY MINUTES. PLEASE LEAVE THE APP RUNNING.
** MAKE SURE YOUR DEVICE IS PLUGGED IN BEFORE YOU BEGIN MEASUREMENT.
Whats new in version 1.4
** Galaxy S4 is now supported
Whats new in version 1.3
****** Added a refresh button that allows the user to refresh measurement.
****** Improved current estimation algorithm.