Battery for back-up sump pump

The calendar says it has been three years since I had the back-up pump installed and thus, according to the instruction manual the battery should be replaced. Is this automatic or can I do some test to see if really needed.
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Take it to a place that load tests them, auto store, car mechanic, its usualy free. If it never operated it will be fine if the charger did its job. Maybe the battery was bad 3 years ago, maybe it will be good for 10 more. If voltage is is what it should be, around 13 then its been maintained and might be ok. Low or high voltage kills batteries, a crappy charger.
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also look at water powered sump pumps.
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A good idea. No battery powered pump is going to last long when it is really needed, unless it has too small a capacity to keep up or has a few grand worth of batteries.
It is very rare for the water supply to your home to go out, even when the power is off. Yes, you can pump water with water.
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ya, unplug the sump pump, fill the sump with water and see if the battery powered pump works. OR take the battery to your local auto shop and have it load tested.
s

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wrote:

Take it to a good auto electric place and havreit checked on the transconductance tester or whatever they call it. If it fails, put in an Optima YellowTop.
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