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-rw-r--r--src/main/java/org/traccar/protocol/H02ProtocolDecoder.java4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java b/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
index 6f1a4f01e..22bbe4441 100644
--- a/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
@@ -88,7 +88,9 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
}
private Integer decodeBattery(int value) {
- if (value <= 3) {
+ if (value == 0) {
+ return null;
+ } else if (value <= 3) {
return (value - 1) * 10;
} else if (value <= 6) {
return (value - 1) * 20;