1733, Battery Backup System


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Battery Backup
For Sewage Ejector Pumps

1800 Watt Capacity

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Only 1 left in stock

1800 Watt Capacity

1733 is a powerful backup designed for use with sewage ejector pumps and may also be used with sump pumps. It is among the most advanced and reliable emergency battery backup systems within its size class. It interfaces between a pump and its AC wall outlet. When AC utility power is present, the 1733 charges one or more batteries. While channeling power from the wall outlet to the pump it monitors the wall outlet for power outage detection. At the moment utility power fails, the 1733 substitutes its own generated AC power necessary for pump operation by converting energy from the battery. When utility power is restored, the 1733 automatically switches the pump back to the AC wall outlet’s power. At the same time the 1733 resumes the charging of the battery to return it to full capacity in preparation for the next power failure.

Runtime Calculator
Battery Capacity (AHr):
Number of Batteries:
Pump Current (Amps):
Seconds On:
Seconds Off:
Total Hours:

General Application

  • To determine compatibility with pump: User should verify that steady state pump current does not exceed 15A
  • Additional Deepcycle Marine Battery Required – Sold Separately


  • Rugged Aluminum Housing
  • Power Output Indicator
  • Clean Sine Wave Output
  • Battery Charge State Indicators
  • Replace Battery Indicator
  • 45A Start Current Capacity (3 seconds)
  • Low battery audible alarm
  • Battery Cables Included
  • Compact Size
  • Can be mounted on wall or placed on flat surface
  • 2 year Factory Warranty
  • Designed and Serviced in the USA



  • Operates Most AC Within a 15A Rating
  • Instant Automatic Power Transfer
  • Supports Full Pump Capacity
  • Does Not Occupy Sump Pit Space
  • Can Be Easily Installed
  • Silent and Clean Operation
  • Monitors Battery and Power Line
  • 10 year life expectancy


Pump Compatibility

Operates conventional submersible sump pumps rated up to ½ Hp. and high efficiency types rated up to ¾ Hp. and not exceeding a maximum of 15A during continuous operation. Compatible with models manufactured by :

  • Zoeller
  • Little Giant
  • Flowtec
  • Hydromatic
  • Wayne
  • Rigid
  • Everbuilt
  • Liberty



icon_product_brochureInstruction Manual

icon_product_brochureProduct Brochure

Cables for paralleling more than one battery sold separately.

Weight 22 lbs
Packaging Dimensions 28 × 14 × 6 in
Max Running Current

14 Amps

Max Startup Current

45 Amps


120 VAC