Battery Backup Sump Pump - How Reliable?

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Old 05-19-07, 12:32 PM
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Battery Backup Sump Pump - How Reliable?

Has any one done some real life testing with their battery powered pump?

Mine seems to work fine if I raise the float once but when I repeat this the second time the battery alarm goes off saying "battery is defective - go replace it". My battery is only 2 years old. I took it to an auto shop and got it checed out. They said there is no problem with the battery but they found that it is not fully charged. They went ahead and charged it. I repeated the test again after about 10 days of full charging. The result is the same = "battery defective - go change it".

Now I am suspecting the controller that is responsible to charge the battery. Is the controller supposed to charge the battery to a level that the pump can run for 12 hours continuosly (mine is a heavy duty battery rated for 12 hours on the type of pump I got)?

I am just looking for some one to attest that the pump has indeed worked continuosly for long durations without any trouble.

I think there are lot of people out there with these pumps and they only know when it fails when it is supposed to rescue them.
 
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Old 05-21-07, 05:40 AM
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more details...

a couple of questions:

- What's the brand + model of the backup sump pump you have?
- What kind of battery are you using, i.e. is it a deep cycle marine battery, where you have to add distilled water every month, or is it a gel maintenance-free battery, or is it a regular car battery...?
 
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Old 05-21-07, 07:25 AM
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1) It is called "basementwatchdog" emergency backup system.
2) I'm using the one that is also called "basementwatchdog" battery. They carry two different kinds. Mine is heavy duty (deep cycle) one. It is the kind where I add distill water once a while when the water level goes low.
 
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