How Much Electricity Would 2 Sump Pumps And A Battery Back Up Use? - Electrical - DIY Chatroom Home Improvement Forum

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Old 04-01-2013, 07:34 PM   #1
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How much electricity would 2 sump pumps and a battery back up use?

I just had a french drain installed in my home (two Zoeller M53's 1/3hp and a 10amp/12volt battery backup model 507)

My house gets little water during heavy rains, but I did want to waterproof the basement before finishing.

Anyway, if I have these plugged in at all times, is that a good idea (what about the battery back up)?
Should I only plug in if I know a heavy rain is coming to save electricity?



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Old 04-01-2013, 07:38 PM   #2
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They don't consume any electricity unless they are running. The battery backup may use a little but I'm sure it is probabely minimal.


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Old 04-01-2013, 07:41 PM   #3
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Okay cool, I was just worried if this suckers drain your electricity.

When they are pumping, do they use a lot (for instance something as powerful as one of those portable heaters)
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Old 04-01-2013, 07:59 PM   #4
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Just look a the amperage rating on the plates. One amp equals about 100 watts, so just figure from there. Just think of a 100 watt light bulb. Electric element heaters use a lot of juice, as they are basically a dead short. Even a typical hair dryer uses like 1500 watts. 1 HP equals 745 watts. Sump pumps are usually like 1/4 or 1/3 HP. Not much juice. 1/3 hp= 248 watts?

2 and a half light bulbs.
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Old 04-02-2013, 04:56 AM   #5
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Thats all it would use up while pumping? 2 and a half bulbs? wow.

That is good to hear

If it were you, would you always keep the battery back up plugged in, or just charge it once a week or so?
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Old 04-02-2013, 05:40 AM   #6
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Keep the thing plugged in at all times-----you need to keep the battery charged----

The unit uses very little power----the charger is not much bigger that the one that charged your phone-----
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Old 04-02-2013, 05:45 AM   #7
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Is the battery backup designed specifically for the application? If it's a good one, it is designed to be left plugged in at all times. It will have an on-board "brain" that will keep the batteries in top condition. Read the manual that came with the unit and see what they recommend.
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Old 04-02-2013, 06:34 AM   #8
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The standby charger probably wont use much power. Typical ones will charge at 2 amps 12 volts dc at certain intervals, I believe. I have 2 big 100AH marine batteries hooked up to an inverter charger and I don't notice any significant energy usage. The 300w+ worth of server equipment uses much more.


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