Back Up Battery System
Sump Pump Battery Backup System
Your sump pump is your basement’s most important line of defense against flooding. But what happens when the power goes out during the worst storm of the year? In Atlanta, severe thunderstorms and heavy rainfall events frequently knock out electricity — often at the exact moment your sump pump needs to be working hardest. Without a battery backup system, your sump pump goes completely silent the moment power is lost, leaving your basement completely unprotected and vulnerable to flooding. A battery backup system ensures your basement stays protected no matter what — even when the power is out, even when your primary pump fails, and even when you are not home to notice.
How Does a Battery Backup System Work?
A sump pump battery backup system consists of a secondary pump unit connected to a deep-cycle marine battery that charges continuously while power is available. The moment your primary sump pump loses power or stops functioning for any reason, the battery backup system automatically activates within seconds — seamlessly continuing to pump water out of your basement without any interruption. Most battery backup systems can pump tens of thousands of gallons on a single charge, providing hours of continuous protection through even the longest power outages. Our systems also include an alarm that alerts you when the backup has been activated so you are always aware of the situation.
- Activates automatically the instant your primary pump loses power or fails
- Pumps thousands of gallons on a single battery charge
- Built-in alarm system alerts you when backup protection is engaged
- Continuous battery charging ensures the system is always ready when needed
Every battery backup system we install is matched specifically to your primary sump pump and sump pit configuration. We test the entire system — primary pump, backup unit, float switches, and alarm — before we leave your property to ensure everything works together seamlessly. We also walk you through how the system operates, what the alarm sounds like when it activates, and how to monitor your battery health so you always know your basement is protected. With a complete sump pump and battery backup system installed by Atlanta Waterproofing, you can sleep soundly through any Atlanta storm.
Where Can I Get Some?
Do I really need a battery backup if I already have a sump pump?
Absolutely. A sump pump without a battery backup is only protected until the power goes out — and Atlanta storms are notorious for knocking out electricity during the heaviest rainfall. According to industry data, power outages during storms are one of the leading causes of basement flooding even in homes that already have sump pumps installed. A battery backup system is not optional protection — it is the essential second layer that makes your entire waterproofing system truly reliable in every situation.
How long will the battery backup run during a power outage?
The runtime of a battery backup system depends on how frequently the pump needs to activate and the capacity of the battery. In moderate conditions, most backup systems provide 8 to 12 hours of continuous protection on a full charge. In heavy storm conditions where the pump runs frequently, runtime may be shorter. For extended outages, we can discuss higher-capacity battery options during your free inspection. The most important thing is that your backup system is properly sized for your basement's water volume — which our technicians ensure during every installation.
How do I know if my battery backup system is working properly?
Your battery backup system should be tested every three to six months by simulating a power failure — simply unplug your primary pump and pour water into the sump pit to confirm the backup activates immediately. The battery should also be inspected annually and replaced every three to five years to maintain peak performance. Our team is available for annual maintenance inspections to test your complete sump pump and backup system, ensuring everything is functioning correctly and ready for Atlanta's next big storm.
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Don't wait until water damage gets worse. Reach out to Atlanta Waterproofing today and let our experts assess your property, recommend the right solution, and get your home protected — fast.
