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Question DetailsAsked on 9/17/2013

I just want a back-up battery installed for my sump pump. Do i have to buy a whole new sump pump

sump pump works fine, no defects, hasn't failed in years.

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4 Answers


It is possible to buy a battery backup system that uses an electronic or solenoid switch and inverter to drive the existing pump, for about $150-200 - very little cheaper than a complete low-voltage backup system. HOWEVER, I would advise against it - if you get a 12 or 24V backup sump pump with battery system and charger and alarms, then you have a backup for not only power failure on the 120V feed to the existing pump, but also a backup against pump blockage or failure, or motor failure on the "normal" pump, as it can be set not only to work when the 120V power is out, but also you can set a higher limit switch, so it comes on if the water rises above the normal start level for the primary pump - be it due to power failure, pump failure, excessive water inflow, or whatever cause.

The downside - you may have to enlarge your sump pump pit to accomodate both pumps, and a bit of minor plumbing to run the two discharge risers together at the drain line.

Answered 7 years ago by LCD



Source: MiaMat

Answered 7 years ago by plumber2007


you can use your current pump,I got one at home Depot pump without battery you need an outlet simple hook up with the help of an electrician.

Source: MiaMat

Answered 7 years ago by plumber2007


While its been long ago that this question was asked but its pertinent even today as many of home owners find it really futile to go for a battery backup sump pump when they already have a primary sump pump.

So the answer lies in adding a battery backup to your primary pump so that it can work unabated in case of a power failure when you are a pumping out flood water from your basement or your property.

A detailed guide on adding a backup to your sump pump and some of the most ideal batteries are reviewed on the source page.


Answered 8 months ago by Pressurecoach

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