Sensaphone CELL682 - Manual (Page 22)

20
Cell682 User’s Manual
connecting the battery
The CELL682 contains an internal 12V rechargeable battery that must be wired
to the terminal strip at the time of installation (see procedure below). The battery
will power the system for several hours in the event of a power failure. The unit
incorporates circuitry to maintain the proper charge for a 12V gel-cell battery
whenever the power supply is plugged-in. The unit also includes special circuitry
to prevent the battery from being damaged in the event of an extended power
outage. The battery should provide approximately 3-5 years of service life before
needing replacement depending on temperature and the number of charge/dis-
charge cycles.
wiring procedUre
Connect the positive terminal of the battery (red wire) to the + Bat terminal on
the Cell682.
Connect the negative terminal of the battery (black wire) to the – Bat terminal on
the Cell682.
Figure 4: Battery connection
The battery is considered low at 12.0V and the Battery LED will blink at this volt-
age level. If main power is less than 7.0V and the battery voltage reaches 11V, the
battery LED will go out and the unit will go into hibernation mode (a low-power
mode in which the unit shuts down). The unit will return to its regular operating
mode when either the main power is restored or the battery voltage rises above
11.5V. If the battery voltage continues to fall below 10.5V, the unit will discon-
nect the battery to prevent deep discharge damage to the battery. The unit will not
reconnect the battery until the battery voltage rises above 12.5V.