Platform: Rockchip
OS: Android 6.0
Kernel: 3.10.92

跟蹤發現Android6.0相比之前的Android4.4會判斷Charger是否存在，不存在就認為裝置不具備充電能力並且設定當前電量是100%
解決方法：

[email protected]:~/rk3288/system/core/healthd$ g df 6446f0e6bfabeee8cbe8b233bf7bf87ad7b55665 727c2d4ab5c4b50555b8c64d1b2a61a342e4360c 
diff --git a/healthd/BatteryMonitor.cpp b/healthd/BatteryMonitor.cpp
index 07e7
 
a18..396dfef 100644
--- a/healthd/BatteryMonitor.cpp
+++ b/healthd/BatteryMonitor.cpp
@@ -555,18 +555,12 @@ void BatteryMonitor::init(struct healthd_config *hc) {
     // This indicates that there is no charger driver registered.
     // Typically the case for devices which do not have a battery and
     // and
 
 are always plugged into AC mains.
-
-/*Kris, 20170728, we don't have any charger. { */
-#if 0
     if (!mChargerNames.size()) {
         KLOG_ERROR(LOG_TAG, "No charger supplies found\n");
         mBatteryFixedCapacity = ALWAYS_PLUGGED_CAPACITY;
         mBatteryFixedTemperature = FAKE_BATTERY_TEMPERATURE;
         mAlwaysPluggedDevice = true
 
;
     }
-#endif
-/*Kris, 20170728, we don't have any charger. } */
-
     if (!mBatteryDevicePresent) {
         KLOG_WARNING(LOG_TAG, "No battery devices found\n");
         hc->periodic_chores_interval_fast = -1;