CODEWITHSUNDEEP
javaandroid
ArmaAK
ArmaAK

Reputation: 587

Android battery voltage unit discrepancies

I'm using the following line of code:

BatteryManager.EXTRA_VOLTAGE

to get the battery voltage from 2 Android devices.

One gives me a value of 4347, which I'm certain translates to 4347 mV or 4.347 V.

But on my other device, the value returned is 7. This can't possibly mean the battery is outputting .007 V, so is there anything that the second value could represent?

The tablet returning the value of 7 is a TF101, which I believe has a total voltage output of 7.4 V between 2 batteries. Could the 7 in this case be representing the Volts (not milliVolts)?

Upvotes: 1

Views: 1666

Answers (1)

yshahak
yshahak

Reputation: 5096

You probably right that some device returns Voltage in Volt instead of mV. Your Asus tablet for example has 7.4[Volt] battery as you could see here: http://www.ebay.com/itm/Original-Genuine-Battery-for-ASUS-Eee-Pad-TF101-TR101-3300mAh-24Wh-C21-EP101-/191392703477 .

In my galaxy Young I get the same things. So I added this function:

public static float getBatteryVoltage(Intent batteryStatus){
    int voltage = batteryStatus.getIntExtra(BatteryManager.EXTRA_VOLTAGE, -1);
    if (voltage > 1000)
        return voltage / 1000f;
    else
        return voltage;
}

Upvotes: 1

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