GYS 026049, Manual

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11
GYSFLASH 20.12/24 PL
EN
Charging current 7 / 15 / 20 A :
Selection designed to choose the most suited charging current based on the type and size of the battery
(lead-acid or lithium).
Charging current 7 A 15 A 20 A
Battery capacity
Pb
12 V 15 60 Ah 60 90 Ah 90 300 Ah
24 V 15 60 Ah 60 240 Ah -
LFP
12 V
7 15 Ah 15 25 Ah 25 300 Ah
(21 45 Ah EqPb*) (45 75 Ah EqPb*) (75 900 Ah EqPb*)
24 V
7 15 Ah 15 240 Ah
-
(21 45 Ah EqPb*) (45 690 Ah EqPb*)
*Lead battery corresponding : A lithium battery has a better starting performance (CCA) than a lead-acid battery. This is why some
lithium battery manufacturers indicate the battery lead equivalent (EqPb) corresponding to the capacity of a lead-acid battery with
the same starting performance. For instance, a LFP battery of 10 Ah will have the same starting performance as a lead-acid battery
of around 30 Ah.
• Lead-acid charging curve :
The GYSflash 20.12/24 PL features a 7 step charging curve designed to ensure optimal charging of lead-acid batteries.
U
I
1 2 3 4 5 6 7
Analysis Recovery Test Desulfation Charge Absorption
Floating
charge
CHARGE
OK
Le
d
Max 12h <1s Max 5h <1s Max 20h Max 8h No limit
Step
1
: Analysis
Analyses the battery state (charge level, polarity inversion,
wrong battery…)
Step
5
: Charge ( 7 A - 15 A - 20 A / 7 A - 15 A)
Maximum current fast charge to reach 80% charge level.
Step
2
: Recovery ( 3 A - 5 A - 7 A /
3 A - 5 A)
Recovering damaged elements due to a prolonged deep
discharge.
Step
6
: Absorption
( 14.6 V / 29.2 V)
Constant voltage charge to reach 100% charge level.
Step
3
: Test
Sulfated battery test
Step
7
: Floating charge ( 13.6 V / 27.2 V)
Maintains battery charge level at its maximum.
Step
4
: Desulfation ( 15.8 V / 31.6 V)
Battery desulfation algorithm.