From b56878dde35a8cc9275707a9c486a3cb095a09f5 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Mon, 10 Aug 2020 20:25:31 -0700
Subject: Fix battery level decoding

---
 src/main/java/org/traccar/protocol/T800xProtocolDecoder.java     | 8 +++-----
 src/test/java/org/traccar/protocol/T800xProtocolDecoderTest.java | 4 ++++
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java b/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
index 3331ebb71..5822d6b8f 100644
--- a/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
@@ -230,10 +230,7 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
             position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
 
             int battery = BcdUtil.readInteger(buf, 2);
-            if (battery == 0) {
-                battery = 100;
-            }
-            position.set(Position.KEY_BATTERY, battery);
+            position.set(Position.KEY_BATTERY_LEVEL, battery > 0 ? battery : 100);
 
         }
 
@@ -284,7 +281,8 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
             }
             position.set(Position.KEY_G_SENSOR, "[" + accelerationX + "," + accelerationY + "," + accelerationZ + "]");
 
-            position.set(Position.KEY_BATTERY_LEVEL, BcdUtil.readInteger(buf, 2));
+            int battery = BcdUtil.readInteger(buf, 2);
+            position.set(Position.KEY_BATTERY_LEVEL, battery > 0 ? battery : 100);
             position.set(Position.KEY_DEVICE_TEMP, (int) buf.readByte());
             position.set("lightSensor", BcdUtil.readInteger(buf, 2) * 0.1);
             position.set(Position.KEY_BATTERY, BcdUtil.readInteger(buf, 2) * 0.1);
diff --git a/src/test/java/org/traccar/protocol/T800xProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/T800xProtocolDecoderTest.java
index 48c535c96..d2532d091 100644
--- a/src/test/java/org/traccar/protocol/T800xProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/T800xProtocolDecoderTest.java
@@ -11,6 +11,10 @@ public class T800xProtocolDecoderTest extends ProtocolTest {
 
         T800xProtocolDecoder decoder = new T800xProtocolDecoder(null);
 
+        verifyAttribute(decoder, binary(
+                "2727020049052e086528404072393849002008060310110000000068b7c8c286eaa441000000008000008100001617410700019ce782b0001e000002581e00000530d4801f00000000"),
+                Position.KEY_BATTERY_LEVEL, 100);
+
         verifyPosition(decoder, binary(
                 "262602005308090865284040309670000f000f0f0000005a47c000050100000020000000008bfd0020022505185300004041dcc9d6c243b3c6410000012712400000000009e2ffffffffffffffffffffffff09"));
 
-- 
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