Anyone have thoughts on a "good" Battery Back Up Sump Pump? I'm looking at the 12v ones but have read conflicting reviews. I'm looking for one that hopefully lasts approx. 5-7 hours.
The period it operates from is directly drivein by how large a battery (amp-hours) you care to purchase.
It is even possible with the correct setup to parallel batteries for longer operating time.
The discharge side of things is simple, the charging side for paralleled batteries is a little harder.