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SigmasTek  |  SKU: BW-4259

APC Back-UPS 300 BK300MI UPS High Performance Replacement Battery 5.25 lb

15% off
New arrival
Sale price $33.99 USD Regular price $39.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced durability
High rate discharge design supports emergency power needs
Maintenance-free and spill-proof construction for safety
U.L. recognized and CE certified for guaranteed quality
1-year warranty ensures reliable, factory-fresh performance
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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.

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


Volts & Amps

12 Volts | 7.5 Ah

Terminal Type

F2

Replacement APC 300 BK300MI Battery — Compatible with APC 300 BK300MI

Replace the battery in your APC 300 BK300MI with a reliable, OEM-equivalent unit built for performance and safety. This replacement UPS battery is designed to meet or exceed the original SLA specifications for the APC 300 BK300MI, delivering dependable backup power, strong discharge capability, and long-term reliability for home and small office UPS systems.

Key Specifications

  • Compatibility: APC 300 BK300MI
  • Battery Type: Absorbent Glass Mat (AGM) Technology
  • Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 7.5 Ah
  • Terminal Type: F2
  • Intended Use: APC Back-UPS / Back-UPS systems

Benefits

Designed for durability, this replacement UPS battery uses AGM technology to provide a stable, reliable power source for critical devices. The high rate discharge design supports rapid power demands without compromising life expectancy, and the maintenance-free, spill-proof construction ensures safe, low-maintenance operation. As a high-performance UPS battery, it is suitable for protecting modems, routers, point-of-sale systems, and other electronics.

The long-lasting battery chemistry and certified safety (U.L. and CE) make it an excellent choice for emergency power supply scenarios and for use with battery powered tools in portable applications. This unit is brand new and factory fresh, so you receive maximum expected lifespan and reliability right out of the box.

Installation is quick using the standard F2 terminals, and the included 1 year warranty backs your purchase. Our guarantee of 100% compatibility with the APC 300 BK300MI ensures this replacement will restore full UPS functionality without guesswork.

Protect your equipment now — order this replacement UPS battery for the APC 300 BK300MI and get a high-performance, long-lasting battery that keeps critical systems online. Click to purchase today.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)5.25

Product Highlights

  • Brand Replacement : APC Back-UPS
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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