diff --git a/fhem/CHANGED b/fhem/CHANGED
index d9b68ac76..1c85131ad 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,7 @@
 # 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_XiaomiBTLESens: fix error messages
+  - feature: 46_TeslaPowerwall2AC: Powerwalls overwiev
   - feature: 73_PRESENCE: new set commands overrideInterval and clearOverride
                           to temporary override the check interval.
                           new attributes retryCount and retryInterval
diff --git a/fhem/FHEM/46_TeslaPowerwall2AC.pm b/fhem/FHEM/46_TeslaPowerwall2AC.pm
index 843063d4a..d256fe52c 100644
--- a/fhem/FHEM/46_TeslaPowerwall2AC.pm
+++ b/fhem/FHEM/46_TeslaPowerwall2AC.pm
@@ -66,7 +66,7 @@ use HttpUtils;
 eval "use JSON;1" or $missingModul .= "JSON ";
 
 
-my $version = "0.2.3";
+my $version = "0.4.0";
 
 
 
@@ -231,6 +231,7 @@ sub TeslaPowerwall2AC_Notify($$) {
 
     TeslaPowerwall2AC_Timer_GetData($hash) if( grep /^INITIALIZED$/,@{$events}
                                                 or grep /^DELETEATTR.$name.disable$/,@{$events}
+                                                or grep /^DELETEATTR.$name.interval$/,@{$events}
                                                 or (grep /^DEFINED.$name$/,@{$events} and $init_done) );
     return;
 }
@@ -489,15 +490,20 @@ sub TeslaPowerwall2AC_ReadingsProcessing_Powerwalls($$) {
     
     
     if( ref($decode_json->{powerwalls}) eq "ARRAY" and scalar(@{$decode_json->{powerwalls}}) > 0 ) {
-    
+        my $i = 0;
+        
         foreach my $powerwall (@{$decode_json->{powerwalls}}) {
             if( ref($powerwall) eq "HASH" ) {
             
                 while( my ($r,$v) = each %{$powerwall} ) {
-                    $readings{$r}   = $v;
+                    $readings{'wall_'.$i.'_'.$r}   = $v;
                 }
+                
+                $i++;
             }
         }
+        
+        $readings{'numberOfWalls'}   = $i;
 
     } else {
         $readings{'error'} = 'aggregates response is not a Array';
diff --git a/fhem/FHEM/74_XiaomiBTLESens.pm b/fhem/FHEM/74_XiaomiBTLESens.pm
index fbe23c7fb..231ec9202 100644
--- a/fhem/FHEM/74_XiaomiBTLESens.pm
+++ b/fhem/FHEM/74_XiaomiBTLESens.pm
@@ -300,8 +300,8 @@ sub XiaomiBTLESens_stateRequest($) {
             if( XiaomiBTLESens_CallBattery_IsUpdateTimeAgeToOld($hash,$CallBatteryAge{AttrVal($name,'BatteryFirmwareAge','24h')}) );
 
             if( $hash->{helper}{CallSensDataCounter} < 1 ) {
-                XiaomiBTLESens_CreateParamGatttool($hash,'write',$XiaomiModels{AttrVal($name,'model','')}{wdata},$XiaomiModels{AttrVal($name,'model','')}{wdataValue});
-                $hash->{helper}{CallSensDataCounter} = $hash->{helper}{CallSensDataCounter} + 1;
+                    XiaomiBTLESens_CreateParamGatttool($hash,'write',$XiaomiModels{AttrVal($name,'model','')}{wdata},$XiaomiModels{AttrVal($name,'model','')}{wdataValue});
+                    $hash->{helper}{CallSensDataCounter} = $hash->{helper}{CallSensDataCounter} + 1;
                 
             } else {
                 $readings{'lastGattError'} = 'charWrite faild';