BÜTTNER ELEKTRONIK – Batterie-Control-Booster MT BCB 25/20
EN
31
4. Commissioning and function
4.1. Setup
• Select the charging program according to the type of the board battery, table 1.
• Set slide switch “V – D+” according to installation type, table 2.
• Activate pulse unit alternatively, see important information in table 3.
• Adjust the charging current while driving to the battery capacity, table 4.
Table 1: Charge-program for type of board battery
DIP-switch
position
(white)
Charge-program for board battery in
mains- and booster-operation.
(Unless otherwise specified by the battery manufacturer, the appropriate charging program for the
battery type can be determined based on the following description and the technical data, U
1
and U
2
voltages and U
1
charging times.)
Lead Acid / AGM1 14.4 V:
universal charging program for lead
acid as well AGM-batteries
U
1
Absorption voltage: 14.40 V (20 °C 1.5 - 6 h)
U
2
Float voltage: 13.50 V 20 °C 24 h
U
3
Storage voltage: 13.20 V (2x / week regeneration: 14.40 V 20 °C 1 h)
AGM2 14,7 V:
Ladeprogramm für
AGM (Blei-Vlies-Batterien, VRLA-AGM):
U
1
Absorption voltage: 14.70 V (20 °C 1.5 - 5 h)
U
2
Float voltage: 13.60 V (20 °C 24 h)
U
3
Storage voltage: 13.20 V (2x / week regeneration: 14.70 V 20 °C 1 h)
Gel 14,4 V:
charging program for lead-
gel-batteries (dryfit / SLA, sealed):
U
1
Absorption voltage: 14.40 V (20 °C 4 -12 h)
U
2
Float voltage: 13,80 V 20 °C 48 h
U
3
Storage voltage: 13.50 V (2x / week regeneration: 14.40 V 20 °C 1 h)
LiFePO
4
14,4 V:
charging program for MT-LiFePO
4
-batteries with internal BMS.
(Check other LiFePO
4
batteries for suitability for 14.4 V charging voltage and only operate completely
with their own BMS and the required protective circuit !)
U
1
Absorption voltage: 14.40 V (0.3 h)
U
2
Float voltage: 13.80 V (24 h)
U
3
Storage voltage: 13.50 V cont.
