Docs: Clarifying why power values are in amps
Bug: 25720096
Change-Id: I30f2b3c402b04c4d6bf2aeabc14a1030cec199fb
diff --git a/src/devices/tech/power/values.jd b/src/devices/tech/power/values.jd
index 912b2b6..e75d50a 100644
--- a/src/devices/tech/power/values.jd
+++ b/src/devices/tech/power/values.jd
@@ -33,6 +33,12 @@
the values (deriving differences from other baseline power uses as appropriate).
</p>
+<p>As the goal of a power profile is to estimate battery drain appropriately,
+power profile values are given in current (amps). The Android framework
+multiplies the current by the time for which the subsystem was active and
+computes the mAh value, which is then used to estimate the amount of battery
+drained by the application/subsystem.</p>
+
<h2 id="multiple-cpus">Devices with heterogeneous CPUs</h2>
<p>The power profile for devices with CPU cores of heterogeneous architecture