Search  for anything...

933 Battery Backup System for Wood Pellet Stoves, Harman, Quadra Fire, American Energy, Breckwell, England's Stove, Lennox, Lopi, US Stove, and more

  • Based on 7 reviews
Condition: New
Checking for product changes
$795.00 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by SEC AMERICA CORP

Arrives Wednesday, Nov 6
Order within 14 hours and 20 minutes
Available payment plans shown during checkout

Features

  • FEATURES: This 1200 Watt Pure Sine wave battery backup is compact; its designed to operate up to 10 amps & comes with indicators for power output, battery charge, & battery replace.
  • COMPACT & DURABLE: The 933 battery backup is housed in rugged aluminum & comes in a compact size; supports full pump capacity & can be easily installed; it offers a silent & clean operation
  • WHAT YOU NEED: For functionality of the battery backup, connect a 12Volt deep cycle marine battery (purchased separately) with a capacity rating between 90 & 200 ampere hours; battery cables included
  • BRAND PROMISE: We take pride in our rugged, built-to-last products & offer a 2-year factory warranty on our sump pump battery backup system; made & serviced in the USA

Brand: SEC AMERICA


Material: Aluminum


Color: Black


Item Dimensions LxWxH: 17 x 6 x 3 inches


Item Weight: 18 Pounds


Brand: SEC AMERICA


Material: Aluminum


Color: Black


Item Dimensions LxWxH: 17 x 6 x 3 inches


Item Weight: 18 Pounds


Assembly Required: No


Fuel Type: Pellet, Wood


Mounting Type: Freestanding


Coverage: Full


Product Dimensions: 17 x 6 x 3 inches


Item Weight: 18 pounds


Country of Origin: USA


Item model number: 933


Date First Available: June 15, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • freezer and refrigerator backup
I have two of these units, each connected to a Renogy 100 Ah deep AGM battery. One backs up a 5 Amp freezer, another backs up a 2 Amp garage fridge. I have had no power failures yet to test them with but have tested each by unplugging them from the wall. It takes 1-2 seconds for a unit to begin drawing from the battery. Both systems work as advertised. I ran the fridge for 12 hours as a trial, then plugged it back in. Wall current kicked in almost immediately, and the battery began to charge; that took roughly 12 hours. As a trial I plugged a 3-outlet adaptor into one of the units and connected both a freezer and a house fridge; it powered both units for the 6 hours that I ran the test for. This may not be recommended by SEC but I had no problem. I had some questions and concerns and spoke with SEC people both on email and on phone. Customer service was first rate. I also have had a model 1622 pump sentry working for 2 years. Functioned well during a power failure and kept my 3/4 sump pump running until the power returned. I am glad that I have these 3 units. ... show more
Reviewed in the United States on August 21, 2022 by Michael K. Matthews, Jr.

  • Security when you need it
Very easy to install, hope to never need its services but having a pellet stove kind of mandates a battery backup system. Testing it via the instructions, this device works as expected. When you unplug the power the unit automatically switched to the deep cell battery source, when the power is back on it again automatically switches back to electric service and charges the battery back to full. Peace of mind especially at night while sleeping. Pricey, but i recommend this to anyone. ... show more
Reviewed in the United States on January 25, 2023 by Michael L. Klingerman Michael L. Klingerman

  • Works with Harman Accentra Pellet Stove
Easy to hook up, recharges automatically when power comes back on. Size is a little bigger than a 12 pack of soda and solidly built. Made in USA.
Reviewed in the United States on April 3, 2023 by Ed

  • Works so far
It seems like a well built unit but it does not function like the instructions say. It has a hum all the time which I am thinking is the control relay coil being pulled in. Runs my pump no problem but the fan comes on the minute power is lost sucking energy unnecessarily from the battery with no load on it shortening the the run time. Seems to charge the battery correctly. Will see how it does when we have water in our sump pit next rain. ... show more
Reviewed in the United States on August 14, 2022 by Farm working man

  • Quite robust
When I ordered I could not figure out why $795. But I did so based upon positive reviews. When arrived I realized this is a very solid piece of serious electrical equipment. Even came with heavy duty battery cables with very good connectors I have not hooked up yet but I’m confident this this will do as well as reviewed Oh and the owners manual is GOLD. Well written in English. Not a so so translation like so many others. ... show more
Reviewed in the United States on January 7, 2023 by P. Kennedy

Can't find a product?

Find it on Amazon first, then paste the link below.