Victron energy Blue Smart 12/4 Manuel page 6

The charger will automatically store the selected charge mode and recall it for future charge cycles
(even after being disconnected from power).
When recondition mode is selected, the RECONDITION LED will be illuminated in addition to the
selected charge mode LED.
If required, activate low current mode (reduced charge current); depress and hold the MODE button
for 6 seconds, when activated the selected charge mode LED (normal / high / li-ion) will blink.
Depress and hold the MODE button for 6 seconds again to end low current mode.
d) When the ABS LED is illuminated the charger has moved into absorption stage (bulk stage is
complete); the battery will be approximately 80% charged (or >95% for Li-ion batteries) and may
be returned into service if required.
e) When the FLOAT LED is illuminated the charger has moved into float stage (absorption stage is
complete); the battery will be fully (100%) charged and is ready to be returned into service.
f)
When the STORAGE LED is illuminated the charger has moved into storage mode (float stage is
concluded); to maintain the battery at full charge, the battery can be left on continuous charge for
an extended duration.
g) Disconnect the AC power cable from the mains power outlet at any time to stop charging.
4