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SigmasTek  |  SKU: BW-13591

BS Battery B12-2.9 High Performance Replacement Battery 2.32 lb

23% off
Sale price $32.99 USD Regular price $42.99
Shipping calculated at checkout.
Compatible replacement for BS Battery B12-2.9 model
Meets or exceeds OEM SLA battery specifications
Brand new, factory fresh, and high-quality sealed lead acid battery
Includes minimum one-year warranty for peace of mind
UL listed for safety and reliability
In stock

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Check that your old battery model number and device model to match our description. This makes sure they work together.


We ship your order same day if you buy it before 4 PM EST.

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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 2.9 AH

Terminal Type

F1

BS Battery B12-2.9 Replacement Battery — Compatible with BS Battery B12-2.9 (F1 Terminal)

Reliable performance and compact power meet compatibility in this replacement battery for the BS Battery B12-2.9. Engineered to meet or exceed OEM SLA specifications, this brand-new sealed lead acid battery provides consistent output and dependable service for a variety of small-form-factor and standby applications. If you require a compact, long-lasting battery that fits BS Battery B12-2.9 installations, this high-performance battery is designed to deliver.

Key Specifications

  • Compatible Model: BS Battery B12-2.9
  • Voltage: 12 Volts
  • Capacity: 2.9 Ah (2.9 amp-hours)
  • Terminal Type: F1
  • Brand / Supplier: SigmasTek (replacement for BS Battery)
  • Condition: Brand new, factory fresh
  • Standards: UL listed
  • Warranty: Minimum one year warranty
  • Compatibility Guarantee: 100% compatibility with BS Battery B12-2.9
  • Shipping: In stock, ships within 24 hours

Benefits

This compact replacement battery offers durable, maintenance-free operation ideal for smaller UPS units, emergency lighting fixtures, alarm systems, and portable equipment. As a sealed lead acid battery, it is non-spillable and safe to mount in a range of orientations, making installation straightforward in confined enclosures. The F1 terminal ensures a secure connection common to many compact battery compartments.

Beyond convenience, the unit is built for longevity as a long-lasting battery option for standby scenarios. It performs reliably under float conditions and provides predictable discharge behavior during power interruptions. This high-performance battery is suitable for emergency power, alarm backups, and small-scale UPS systems that require dependable short-duration backup capacity. The UL listing and included warranty add assurance that you’re installing a tested, quality replacement.

Technicians and end users will appreciate the quick availability—this replacement battery ships within 24 hours and is kept in stock—helping minimize downtime. The factory-fresh condition and compatibility guarantee with the BS Battery B12-2.9 make it a straightforward swap that restores dependable power to your equipment.

Need reliable compact power? Order this BS Battery B12-2.9 replacement battery today to restore dependable backup performance to your systems.

Technical Specifications

Voltage12 Volts
Amp Hours2.9 AH
Terminal TypeF1
Length (in.)7.0
Width (in.)1.38
Height (in.)2.36
Weight (lb.)2.32

Product Highlights

  • Brand Replacement : BS Battery B12-2.9
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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