BatteryJack inc.
BatteryJack inc. Sears Craftsman Diehard Portable Power 1150 Battery 12V 18AH
A 12 V 18 Ah sealed AGM battery fits the Craftsman Diehard Portable Power 1150 and replaces common UPS, scooter and alarm models
- 100% OEM replacement fits Sears Craftsman Diehard 1150
- Advanced AGM technology delivers maintenance-free deep-cycle power
- Sealed 12V 18AH design suits UPS, scooters and alarms
- Compact 7.13 x 3.00 x 6.6 in size saves installation space
- Expected 4-7 year life reduces replacement frequency
Direct Replacement for Portable Power 1150
This 12 V 18 Ah AGM battery is a 100 % OEM replacement for the Sears Craftsman Diehard Portable Power 1150 unit. It uses sealed, maintenance-free AGM technology and carries a two-year warranty on portable-power devices. Buyers needing a higher-capacity pack or a different voltage will not be served by this model.
Fits Existing Enclosures with Nut-and-Bolt Terminals
The brick measures 7.13 in long, 3.00 in wide and 6.6 in high, weighing 12.5 lb, so it slides into the same compartment as the original UB12220. Nut-and-bolt terminals are supplied for a secure connection without soldering. Installers who require quick-disconnect spade lugs or a different footprint must source an alternative.
Deep-Cycle AGM Chemistry Handles Repeated Discharges
Advanced AGM construction allows regular deep cycling for backup, scooter, alarm and exit-light duties with an expected service life of four to seven years. The sealed design prevents electrolyte loss during prolonged float charging in UPS or fire-panel applications. Users who need rapid high-current bursts for engine starting should choose a dedicated starter battery instead.
Highlights
- 100% OEM replacement fits Sears Craftsman Diehard 1150
- Advanced AGM technology delivers maintenance-free deep-cycle power
- Sealed 12V 18AH design suits UPS, scooters and alarms
- Compact 7.13 x 3.00 x 6.6 in size saves installation space
- Expected 4-7 year life reduces replacement frequency
Specifications
No published specifications for this item yet.
Questions about this item
How long can the 18 Ah capacity sustain a continuous load before voltage drops?
The 18 Ah rating delivers 18 amps for one hour or proportionally longer at lower draws; actual runtime depends on the connected device's current demand.
Does the sealed AGM design stay cool and quiet during all-day backup operation?
Yes, the maintenance-free AGM construction has no moving parts, generates minimal heat and operates silently in continuous UPS or security-system use.
Which terminal hardware must I have on hand to install this 12 V 18 Ah battery?
The unit uses nut-and-bolt terminals, so you will need matching bolts, nuts and a wrench to secure the cable lugs.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



