| Quantity | Price/Ea. |
|---|---|
| 10-49 | $16.68 |
| 50+ | $15.54 |
Product Specifications for 12V 6Ah Sealed Lead Acid Battery - F2 Terminals (Replaces UB1250, HR1221W, APC RBC29/30/46)
| BM Part #: | HR1221W-F2 |
|---|---|
| Voltage: | 12 Volt |
| Capacity: | 6 Ah |
| Energy Capacity: | 60 Wh |
| Terminals: | F2 (0.25") |
| Type: | Sealed Lead Acid |
| Length: | 3.54" |
| Width: | 2.75" |
| Height: | 3.98" |
| Shipping Weight: | 4.55Lbs |
| Warranty: | 1 Year |
| Rechargeable: | Yes |
- 12 Volt, 5 Ah sealed lead acid (SLA) battery.
- 12 Volt, 6 Ah sealed lead acid (SLA) battery.
- F2 terminals (1/4" wide) for secure UPS fit.
- Direct replacement for APC RBC29, RBC30, and RBC46.
- Replaces common batteries like the UB1250, HR1221W-F2, DURA12-5F2, and more.
- Powers a number of popular UPS brands: APC, Tripp Lite, Eaton.
- Rechargeable SLA battery with a maintenance-free and spill-proof design.
- Ready to go! Brand new & factory fresh. Arrives fully charged. Ready for immediate installation.
Product Description
Compatibility Note: Please confirm the battery dimensions and terminal type before ordering. This model uses F2 terminals (1/4" wide). Many alarm systems use the F1 version (view F1 battery here).
Reliable Replacement for UPS & Backup Power
This 12 volt 6 amp hour sealed lead acid (SLA) battery is a dependable replacement for popular models, including UB1250, HR1221W-F2, DURA12-5F2, and APC RBC29, RBC30, RBC46. It is commonly used in APC, Tripp Lite, and Eaton UPS systems, as well as generators, lawnmowers, alarms, emergency lighting, and medical equipment.
Maintenance-Free Power
The valve-regulated, spill-proof design allows safe operation in any position. No electrolyte needs to be added—gases generated during charging are safely recombined inside the battery.
Long Service & Shelf Life
With proper use, you can expect a dependable service life. A low self-discharge rate also allows for storage while maintaining charge. Lower storage temperatures further extend shelf life.
Durable Construction
The high-impact resistant ABS plastic case provides excellent resistance to shock, vibration, and heat. This rugged design ensures reliability in demanding environments like UPS systems and generators.
Specifications
- Voltage: 12V
- Capacity: 6 Ah
- Terminals: F2 (0.25" wide)
- Length: 3.54 in.
- Width: 2.75 in.
- Height: 3.98 in.
- 1 Year Warranty
Cross Reference
This battery replaces many part numbers. Common replacements include:
- UB1250
- HR1221W-F2
- DURA12-5F2
- APC RBC29, RBC30, RBC46
4 Reasons Why You'll Love Our AGM Sealed Lead Acid Batteries
- Sealed, Maintenance Free: Completely spill-proof and can be installed in any position, except upside-down.
- Fully Charged and Ready to Go: Right out of the box, this 12 Volt, 6 Ah rechargeable sealed lead acid battery with F2 (0.25") terminals is ready for anything.
- 100% Brand New and Factory Fresh: We receive new shipments daily, ensuring each of our SLA batteries are as fresh as possible when you need them.
- 100% Satisfaction Guaranteed: We back all our batteries with our 60 Day Money Back Guarantee and our SLA batteries include a 1 year warranty.
Frequently Asked Quesitons (FAQ)
Q: Will this battery fit my APC UPS?
A: Our battery replaces the APC RBC29, RBC30, and RBC46 battery packs. These are found in many APC UPS systems. We recommend checking the dimensions against your original batteries. This battery is 3.54in. (L) × 2.75in. (W) × 3.98in. (H).
Q: What's the difference between F1 terminals and F2 terminals?
A: The width of the terminal. F1 terminals are 3/16in. (0.187in.) wide, while F2 terminals are 1/4in. (0.25in.) wide. This battery has F2 terminals. If your device has F1 connectors, see our F1 version here.
Q: What does the "HR1221W" part number mean?
A: "HR" means "High Rate". "21W" stands for 21 Watts, which means the battery delivers 21 watts for 15 minutes. That's important for UPS units and medical equipment, as they require quick, high bursts of power.
Q: How long does this battery last in a UPS?
A: From our customer feedback that you can read below, most users are getting between 3 to 5 years of service. Of course, battery life can vary based on how often its used. A battery that's charged and discharged every day will have a shorter life.
Q: Does the battery shipped charged and ready for me to install?
A: Yes! We sell brand new batteries. Each one we ship is factory-fresh and ships to you fully charged.
Q: Does this battery work in generators and lawnmowers?
A: Yes it can. Many of our customers have great results using this battery in both generators and lawnmowers. We recommend confirming your old battery's dimensions and terminal type before you order, just to ensure our battery will fit.
Cross Reference & Compatibility
- BE500
Customer Reviews
measured my old battery and got the rating and ordered this battery put it in and the thing is working , it was in the garbage and now I can take it out side and play music .
I looked up videos on YouTube to see if my Tripp Lite UPS battery was easily replaceable (Tripp Lite wrongly says it isn't) and didn't find my specific model but found a video for something close. So I ordered this battery from Battery Mart which was delivered quickly and it was even easier to replace than the one in the instructional YouTube video. I've been using it for about a month now and haven't had any problems.
perfect fit for the space it goes in, much better price than elsewhere
Always meeting expectations
I have a work lawnmower. 24 volt . Batteries no longer available.I purchased 2 12 volt batteries connected together.Put in worx battery box. Works fantastic.and cost $30.00. Worx charged 134.00. when I bought one 3 yrs ago.Quite the deal I got from battery mart. Highly recommend. Very satisfied.
This replaced another battery with the same specifications, also purchased from Battery Mart. That battery gave over 5 years of satisfactory service and I expect similar satisfaction with this one. Battery Mart is my go-to source of SLA batteries. Orders are filled and shipped quickly. Nice people to deal with.
I found the battery I needed easily on the website. Ordering was quick and easy.
