@Deprecated
	private boolean isBatteryLevelCharacteristic(@Nullable final BluetoothGattCharacteristic characteristic) {
		return characteristic != null &&
				BleManager.BATTERY_LEVEL_CHARACTERISTIC.equals(characteristic.getUuid());
	}
Returns true if the characteristic is the Battery Level characteristic.

@param characteristic the characteristic to be checked
@return true if the characteristic is the Battery Level characteristic.
ble/src/main/java/no/nordicsemi/android/ble/BleManagerHandler.java