diff --git a/etc/dbus-serialbattery/battery.py b/etc/dbus-serialbattery/battery.py
index f93d8a56..9a7ab60d 100644
--- a/etc/dbus-serialbattery/battery.py
+++ b/etc/dbus-serialbattery/battery.py
@@ -404,6 +404,7 @@ def manage_charge_voltage_linear(self) -> None:
                     # to make it restart persistent
                     self.bulk_last_reached = current_time
                 if self.control_voltage:
+                    # check if battery changed from bulk/absoprtion to float
                     if not self.charge_mode.startswith("Float"):
                         self.transition_start_time = current_time
                         self.initial_control_voltage = self.control_voltage
@@ -550,6 +551,10 @@ def manage_charge_voltage_step(self) -> None:
                 )
 
             else:
+                # check if battery changed from bulk/absoprtion to float
+                if not self.charge_mode.startswith("Float"):
+                    # Assume battery SOC ist 100% at this stage
+                    self.trigger_soc_reset()
                 self.control_voltage = utils.FLOAT_CELL_VOLTAGE * self.cell_count
                 self.charge_mode = "Float"
                 # reset bulk when going into float