6 Charging Characteristic
The charging of lead-acid batteries is fully automatic with a five-stage char-
ging characteristic for optimum battery charging.
Phase
Description
12 V
24 V
Stage 1
Constant current
(Level 1)
40 A
20 A
Stage 2
Constant voltage
(Level 1)
14.0 V
28.0 V
Stage 3
Constant current
(Level 2)
10 A
10 A
Stage 4
Constant voltage
(Level 2)
14.4 V
28.8 V
Stage 5
Charge retention
13.5 V
27.0 V
– Level 2 has a time limit of 8 h.
– The charging process restarts in phase 1 when the current in the charge re-
tention exceeds 10 A.
9
LEAB Automotive GmbH
Thorshammer 6
24866 Busdorf
LEAB Automotive GmbH
6 Charging Characteristic
