Connecting batteries - AWS310 - AWS310-SITE - AWS810 - AWS810-SOLAR - BMU801

BMU801 User Guide
Document code
M212710EN
Revision
B
Language
English
Product
AWS310
AWS310-SITE
AWS810
AWS810-SOLAR
BMU801
Document type
User guide
BMU801 has two battery connectors to enable parallel connection of 2.6, 7, 21, or 26 (±10 %) Ah 12 V VRLA batteries.
Connect the cables from the batteries to the battery connectors Batt 1 and Batt 2 in the BMU801 front panel.
If you have only one battery in your system, connect it to Batt 1. Powering up the system when running on battery (only the battery and no DC input connected) requires that the battery is connected to the Batt 1 port.

Make sure that you connect the battery cable and the corresponding NTC resistor cable to the same battery:

  • Battery cable from BMU801 connector Batt 1 and the NTC cable next to it to the first battery.
  • Battery cable from BMU801 connector Batt 2 and the NTC cable next to it to the second battery (if you have a second battery in the system).