Installation Instructions

Notice!
Use sealed lead acid batteries only
The charging circuit is calibrated for lead-acid batteries. Do not
use gel-cell or NiCad batteries.
Extra batteries
To increase battery back-up time, connect a second 12 V battery
in parallel to the first battery. Use a D122/D122L Dual Battery
Harness to ensure proper and safe connection.
Refer to Standby battery requirements and calculations.
D1218 Battery
The D1218 is a 12 V, 18 Ah battery for use in applications
requiring extended battery standby time. The control panel does
not support more than 18 Ah.
Install the battery
1. Place the battery upright in the base of the enclosure.
2. Locate the red and black leads supplied in the hardware
pack.
3. Connect the black battery lead to BAT- and then to the
negative (-) side of the battery.
4. Connect the red battery lead to BAT+, and then to the
positive (+) side of the battery.
!
Warning!
High current arcs are possible. The positive (red) battery lead
and BAT+ can create high current arcs if shorted to other
terminals or the enclosure. Use caution when working with the
positive lead and BAT+. Always disconnect the positive (red)
lead from the battery before removing it from BAT+.
4.2.1
Control Panels Power supply | en 19
Bosch Security Systems, Inc. 2015.09 | 08 | F.01U.287.185