20
© 2020. All rights reserved.
BATTERY
This backup system requires a good quality, 12V battery in
order to provide maximum pumping time when needed. A
Basement Sentry brand battery is recommended. Otherwise,
use an AGM deep-cycle 12 volt 105 amp-hour marine battery
or larger. Wet cell batteries contain acid and precautions must
be taken when handling.
DO NOT USE gel batteries or automotive batteries. Batteries
with top terminals are recommended for ease of installation.
Battery box will accommodate a maximum battery size of
13-1/2-in L x 7-in. W x 9-1/2-in H.
NOTE: The water level in a wet cell battery should be checked
every month. AGM batteries should not be checked.
Battery Troubleshooting:
If pump runs without AC power but moves little or no water, the
battery may be low.
• Battery will recharge if green power ‘on’ light indicates
power has been restored and the float switch is in the off
position.
• If immediate use is required, replace old battery with a fully
charged battery.
• NOTE: The pump may continue to run on a low battery
without sufficient power to remove water. Pump will not
stop running until battery drops below minimum voltage.
• CAUTION: Weak batteries can be recharged but may not
store enough energy for full service. A weak, recharged
battery will provide reduced pumping time. If the backup
pump is used frequently, the battery should be checked by
a qualified battery dealer.
• NOTE: The battery may take up to 72 hours to recharge
after use. This will depend on the size of the battery and the
amount the battery is discharged during use.
If the alarm sounds during the recharge cycle, reset the
alarm. If the alarm will not reset, unplug the charger from the
115V outlet and disconnect the black (-) negative lead from
the battery post. Check battery and replace if necessary.
Reconnect and refer to the battery installation section in the
instructions.
1
