![]() ![]() You’re already looking at a minimum of $450. You’d also need a dedicated charger and maintainer for them as well as a high wattage DC to AC power inverter. If you were to build your own system from scratch, you’d ideally be looking at 2 GC2 golf cart batteries or 2 deep cycle marine batteries. If you were to buy a designed battery back-up sump pump from a manufacturer, you’re looking to pay in the $300 – $700 range. Two GC2 golf cart batteries hooked up in series form my battery bank.Ĭost is also another factor. Regardless, once the battery is done, it’s done – at least until you find a means to charge it back up. If your pump only kicks on once every 15 or 30 minutes, you might get days out of the battery backup system. I have an entire article here with multiple types of batteries and various ratings for sump pump watts so you can get an idea of just how long you could power a sump pump from a deep cycle battery. Depending on how often your sump pump needs to kick on to pump out the rising water, you might get anywhere from 5-12 hours on most battery setups for high-frequency pumping. ![]() The problem is in the fact that a sump pump draws a large amount of energy in short spurts over a long period of time. There’s no denying that some deep cycle marine batteries or GC2 golf cart batteries will run a sump pump. Why Does a Generator Win over a Battery Backup System? Battery Backup Systems Let’s roll up our pant legs and jump right in! I’ll discuss why I believe a generator beats a battery backup system in most cases, a few other alternatives that might just be right for you, and some things you can do to mitigate and prevent basement flooding. Following on the list is a battery-backup (homemade or store-bought) to work in conjunction with your existing sump pump - but only when you have your other bases covered. However, the generator is only part of a system-wide plan to address the problem. Water-powered backup sump pump (municipal water households only)Īs a general rule when it comes to sump pump contingency plans, I recommend a generator first on the preparedness list. Dedicated, store-bought battery backup sump pumpĤ. ![]() DIY battery backup with a DC to AC power inverter and deep-cycle batteryģ. To pump water out of a basement without electricity, you have 5 primary options:Ģ. In all honesty, though, there are too many variables in everyone’s particular situations. Just what are the options for a sump pump when the power goes out? As much as I love battery banks to help with power outages, I’m not too proud to step aside and acknowledge a better option its time in the spotlight. If you’re not prepared, your failure to invest several hundred dollars into preparing could cause you thousands in damages along with higher insurance rates. When we start thinking of basic preparedness for power outages, one of the big concerns is what to do with your sump pump without electricity.Ī heavy deluge of rain and wind can knock out electricity and cause some nasty flooding. ![]()
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