Liberty Pumps 441 review
Liberty Pumps 441 Battery Back-Up Emergency Sump Pump System
By Tom Calder
A 12-volt backup that takes over when the power fails or the main pump stops. Budget for a deep-cycle battery as well: it isn't in the box.
- Best for
- A backup pump from a sump-pump specialist
- Skip it if
- You want a kit with the battery included
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →
Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- Sump-pump specialist brand
- Battery box included
Worth knowing
- Battery not included
- Flow not stated on the listing
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Who shouldn't buy this
Don't buy it if you want a kit with the battery included.
Key specs
| Type | Battery backup system |
| Flow (maker) | — |
| Battery | 12V; battery not included |
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the US price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one
Best for Strong flow, buy the battery separately
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Best for A respected pump brand's backup
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Best for A pre-matched primary and battery backup pump pair for a basement with a standard sump pit