I
1
U
1
I
1
U
1
I
2
Charging characteristic IUoU:
I
= Main charging current
1
U
= Final charging voltage
1
U
= Floating charge voltage
2
U
2
Refresh characteristic IUIoU:
I
= Main charging current
1
U
= Final charging voltage
1
I
= Recharging current
2
U
= Floating charge voltage
U
2
2
79