Victron energy EasySolar 12/1600/70 Manuel D'instructions page 27

After changing the position of the rotary switch, the LEDs will blink during 4 seconds as
follows:
Switch LED
position Float
0 1
1 0
2 0
3 0
4 1
5 1
6 1
7 1
Thereafter, normal indication resumes, as described below.
Remark: the blink function is enabled only when PV power is present on the input of the
controller.
8.1 LEDs
Blue LED 'bulk': will be on when the battery has been connected
Switches off when the absorption voltage is reached.
Blue LED 'absorption': will be on when the absorption voltage is reached.
Switches off at the end of the absorption period.
Blue LED 'float': will be on after the solar charger has switched to float.
8.2 Battery charging information
The charge controller starts a new charge cycle every moring, when the sun starts shining.
The maximum duration of the absorption period is determined by the battery voltage
measured just before the solar charger starts up in the morning:
Battery voltage Vb (@start-up)
23,8V < Vb < 24,4V
24,4V < Vb < 25,2V
If the absorption period is interrupted due to a cloud or due to a power hungry load, the
absorption process will resume when absorption voltage is reached again later on in the day,
until the absorption period has been completed.
LED LED
Abs Bulk
1 1
0 1
1 0
1 1
0 0
0 1
1 0
1 1
Vb < 23,8V
Vb > 25,2V
Blink
Frequency
Fast
Slow
Slow
Slow
Slow
Slow
Slow
Slow
Maximum absorption time
4 h
2 h
1 h
0 h
25