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Basement Watchdog

Basement Watchdog Big Dog Battery Operated Backup Sump Pump - BWD12-120C

Abt Model: BW12120C | UPC Code: 717301121203
 Discontinued Product This item is no longer available from our website.
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Basement Watchdog - BWD12-120C - Sump Pumps
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Pumps 2200 GPH AT A 10-Ft Lift/ Computer-Operated Controller/ Indicator Lights/ Powerful 20-Amp Charger/ Sounds An Alarm When It Detects Irregularities/ Runs Without Discharging The Battery When The Power Is On/ Battery Sold Separately/ White Finish
Discontinued (details)
Your Shipping Zip Code: 20149 (change)

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Product Details

Basement Watchdog Big Dog Battery Operated Backup Sump Pump, Model BW12120C

Key Features:

  • Pumps 2200 GPH @ 10-ft lift to empty the sump pit rapidly (3500 GPH @ 0-ft lift)
  • Computer-operated controller monitors the battery, and power conditions. It also runs the pump once per week to ensure operation when you need it
  • Indicator lights let you know the percentage of charge remaining in battery
  • Powerful 20-amp charger recharges the battery quickly and shuts off completely to prolong the life of the battery
  • User-friendly controller sounds an alarm, illuminates a warning light, and describes what to do for easy maintenance
  • Runs without discharging the battery when the power is on
  • It is possible to double the run time of the Big Dog by hooking up two batteries in parallel (extra cables will be necessary for this to be possible)


  • Monitors battery, power and pump activity and sounds an alarm when it detects the following situations:
    • Battery needs water
    • Battery is old and needs to be replaced
    • Battery is discharged
    • Battery is defective and needs to be replaced
    • Battery cable is loose and needs to be tightened
    • Battery terminals need to be cleaned for a better connection
    • Power plug is out of the wall
    • Fuse or circuit breaker has failed
    • Pump has been activated, check the main pump for failure
    • Backup pump is clogged or broken and needs to be cleaned or replaced
    • Battery is hooked-up improperly
  • Includes a dual float switch for added redundancy and protection
  • Float switch only needs to move 1/4" to activate the pump
  • Runs intermittently for days on a single charge
  • Switches automatically to battery power when AC power fails
  • Pumps automatically when water volume exceeds the capacity of the main AC pump
  • Recharges automatically when power is restored
  • Monitors battery & power conditions constantly
  • Detects irregularities, sounds an alarm, and pinpoints problems and solutions on the control panel
  • The alarm can be silenced during a power outage
  • Charges the battery, then the charger shuts off to extend the life of the battery
  • A battery hooked up backwards will not damage the control unit
  • Turns on the pump weekly to ensure operation
  • Displays the percentage of power remaining in the battery
  • Pumps on AC power as well as battery power
  • Capable of pumping and charging the battery simultaneously
  • Two batteries can be used for double the run time
  • Backup pump is clogged or broken and needs to be cleaned or replaced


  • Pumping Capacity (in gallons per hour at a 10-ft.height) 2200 GPH (3500 GPH @0')
  • Efficient 12-volt pump puts less drain on the batteries so they pump longer 10-12 amps
  • Approximate hours of continuous pumping with the Basement Watchdog 7.5 hour battery 7.5 hours
  • Charger strength (the higher the amps, the faster it will recharge the battery) 20 amps

Approximate Weight:

  • Shipping: 32 lbs.

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): Three Years Parts
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More reasons to buy the Basement Watchdog BWD12-120C from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Basement Watchdog BWD12-120C is Brand New.
  • The Basement Watchdog BWD12-120C Ships in a Factory Sealed Box.
  • Abt ships this product for free!
Basement Watchdog Big Dog Battery Operated Backup Sump Pump

Basement Watchdog Big Dog Battery Operated Backup Sump Pump


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