Why it matters
The WSB1275 is the 12 V 75 Ah sealed lead-acid battery Wayne uses for its backup runtime figures, and it fits the ESP25N, WSS30VN, WBPS50 and other Wayne battery backups.
It arrives fully charged, needs no acid mixing or water topping, and has carry handles. Wayne gives it a one-year limited warranty.
Who it's for, and who should skip it
Good fit if
- Wayne backup owners
- Owners who want maintenance-free
- Matching Wayne's runtime figures
Look elsewhere if
- Tight budgets
- Non-Wayne systems needing a different group size
Pros and cons
Pros
- Maintenance free
- Ships charged
- Matches Wayne ratings
Cons
- Higher price per Ah
- One-year warranty
- Heavy
Limitations to weigh
- Charge and check backup batteries on the backup maker's schedule; most last three to five years.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Batteries | 1 12V batteries required. | Retailer |
|---|---|---|
| Battery type | Lead Acid | Retailer |
| Model number | WSB1275 | Retailer |
| Model name | Wayne WSB1275 75Ah AGM Sealed Lead Acid Battery | Retailer |
| Warranty | Warranty | Retailer |
| Voltage | 12 V | Retailer |
| Dimensions (seller) | 11 x 9 x 8 inches | Retailer |
Alternatives worth comparing
More sump pump accessories we cover
- Jackel SF1850S Slotted Basin Cover
- Zoeller 30-0238 Inline Check Valve
- PumpSpy CV-150 Silent Check Valve
- Zoeller 30-0040 Quiet Check Valve
All sump pump accessories, compared in one table · Every Wayne product we cover
Final verdict
The safe choice for a Wayne backup.
Where to buy
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