diff -r f1a7c14d5601 -r a42166cbb19a bmsd/mysql.c
--- a/bmsd/mysql.c	Sat Mar 07 21:05:49 2020 +0100
+++ b/bmsd/mysql.c	Sun Mar 08 17:11:18 2020 +0100
@@ -729,7 +729,7 @@
 
     snprintf(query, 2559,
         "INSERT INTO mon_ispindels SET uuid='%s', alias='%s', node='%s', online='%d', mode='%s', alarm='%d', " \
-        "angle='%.5f', temperature='%.4f', battery='%.6f', gravity='%.5f', up_interval='%d'",
+        "angle='%.5f', temperature='%.4f', battery='%.6f', gravity='%.5f', up_interval='%d', og_gravity='0.0'",
         ispindel->uuid, ispindel->alias, ispindel->node, ispindel->online ? 1:0, ispindel->mode, ispindel->alarm,
         ispindel->angle, ispindel->temperature, ispindel->battery, ispindel->gravity, ispindel->interval);
 
@@ -747,9 +747,9 @@
 
     snprintf(query, 2559,
         "UPDATE mon_ispindels SET online='%d', mode='%s', alarm='%d', " \
-	"angle='%.5f', temperature='%.4f', battery='%.6f', gravity='%.5f', up_interval='%d' WHERE uuid='%s'",
+	"angle='%.5f', temperature='%.4f', battery='%.6f', gravity='%.5f', up_interval='%d', og_gravity=GREATEST(og_gravity, '%.5f') WHERE uuid='%s'",
         ispindel->online ? 1:0, ispindel->mode, ispindel->alarm,
-	ispindel->angle, ispindel->temperature, ispindel->battery, ispindel->gravity, ispindel->interval, ispindel->uuid);
+	ispindel->angle, ispindel->temperature, ispindel->battery, ispindel->gravity, ispindel->interval, ispindel->gravity, ispindel->uuid);
 
     bms_mysql_query(query);
     free(query);