diff --git a/fhem/CHANGED b/fhem/CHANGED
index 2d8a3ca2c..a4e35ee78 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+  - bugfix:  74_NUKIDevice: Fix Problem with battery Reading
   - update:  97_TrashCal.pm: fetches shared dates at an public webpage 
                 of waste disposal
   - bugfix:  73_GasCalculator: Corrected month of annual reading
diff --git a/fhem/FHEM/74_NUKIDevice.pm b/fhem/FHEM/74_NUKIDevice.pm
index 7708dd65e..a9701ce23 100644
--- a/fhem/FHEM/74_NUKIDevice.pm
+++ b/fhem/FHEM/74_NUKIDevice.pm
@@ -33,7 +33,7 @@ use warnings;
 use JSON;
 #use Time::HiRes qw(gettimeofday);
 
-my $version = "0.4.0";
+my $version = "0.4.1";
 
 
 
@@ -402,9 +402,9 @@ sub NUKIDevice_WriteReadings($$) {
     
     my $battery;
     if( defined($decode_json->{batteryCritical}) ) {
-        if( $decode_json->{batteryCritical} eq "false" ) {
+        if( $decode_json->{batteryCritical} eq "false" or $decode_json->{batteryCritical} == 0 ) {
             $battery = "ok";
-        } elsif ( $decode_json->{batteryCritical} eq "true" ) {
+        } elsif ( $decode_json->{batteryCritical} eq "true" or $decode_json->{batteryCritical} == 1 ) {
             $battery = "low";
         } else {
             $battery = "parseError";