Comparison of Basement Watchdog Battery Backup Sump Pump Systems

	A/C-D/C BWD12-120	Special BWS-12A	Emergency BWE-12A
Powerful
Pumping capacity (in gallons per hour at a 10-ft. lift)	2200 GPH	1730 GPH	1000 GPH

Efficient
Low power draw (in nominal amps at 12 volts)	10-12 amps	10-12 amps	6.5 amps
Approximate hours of continuous pumping with the Basement Watchdog 7.5 Hour Battery	7.5 hours	7.5 hours	12 hours
Approximate hours of continuous pumping with the Basement Watchdog Emergency Battery	N/R*	N/R*	6 hours
Runs intermittently for days	Yes	Yes	Yes

Strong
Tough, noncorrosive pump housing	Yes	Yes	Yes
Rugged, polyethylene battery box protects battery, floor and carpet...will not crack, corrode or shatter	Yes	Yes	No

Automatic
Switches instantly to battery power when AC power fails	Yes	Yes	Yes
Pumps when water volume exceeds main pump capacity	Yes	Yes	Yes
Recharges automatically when main power is restored	Quickly	Slowly	Slowly
Charges, then shuts off charger completely to prolong battery life	Yes	No	No
Limits current to prevent overcharging	N/A	Yes	Yes
Monitors battery & power conditions constantly	Yes	Yes	Yes
Daily test runs the pump	Yes	No	No
Detects irregularities, sounds an alarm and pinpoints problems and solutions on the control panel	Yes	Yes	Yes
Tests battery and actually displays the number of hours it will pump	Yes	No	No

Versatile
Pumps on AC power as well as battery power	Yes	No	No
Capable of pumping and charging the battery simultaneously	Yes	No	No

An alarm will alert you to these potential problems:
Battery needs water	Yes	Yes	Yes
Battery is old and needs to be replaced	Yes	Yes	Yes
Battery is discharged	Yes	Yes	Yes
Battery is defective	Yes	Yes	Yes
Battery cable is loose	Yes	Yes	Yes
Power plug is out of wall	Yes	Yes	Yes
Fuse or circuit breaker has failed	Yes	Yes	Yes
Battery is hooked up improperly	Yes	No	No
Pump is clogged or broken	Yes	No	No
Pump has been activated, check main pump for failure	Yes	Yes	Yes

* This battery is not recommended for use with these systems.