Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-5204

APC SU1250 High Performance Compatible Replacement Battery 25.32 lb

11% off
New arrival
Sale price $113.99 USD Regular price $127.99
Shipping calculated at checkout.
Brand new 24 Volt 18 AH UPS battery with high rate discharge capability
Performance guaranteed and tested against OEM standards
Includes 1 battery; existing cables and hardware must be reused
In stock with fast shipping and backed by a 1 year warranty
Provides reliable power for UPS systems requiring short-term high output
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

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.

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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

24 Volts | 18 Ah

Terminal Type

Special Connector

SigmasTek Replacement Battery for APC SU1250 (24V 18Ah)

Restore dependable backup power to your APC SU1250 with this SigmasTek replacement battery. This 24 Volt, 18 AH pack is brand new and factory tested, engineered for the performance and reliability UPS owners expect. Whether your SU1250 is protecting servers, networking gear, or critical electronics, this replacement UPS battery offers the short-term power delivery and longevity required for uninterrupted operation.

Key Specifications

  • Brand: SigmasTek
  • Quantity: 1 battery
  • Voltage: 24 Volts
  • Capacity: 18 AH
  • Terminal / Connector: Special Connector
  • Compatible UPS Model: APC SU1250
  • Connection: Use existing cables and hardware to connect your UPS batteries
  • Design: High Rate Discharge Design
  • Condition: Brand New, Factory Fresh
  • Stock: In Stock and Same Day Shipping
  • Warranty: 1 Year Warranty
  • Support: Professional Customer Support
  • Performance: Performance Guaranteed

Benefits

  • Durability: Constructed for dependable operation, this unit undergoes testing to ensure it meets or exceeds OEM performance requirements, delivering long-term durability for your SU1250.
  • Long Life: Designed to be a long-lasting battery, it helps extend the useful service life of your UPS, saving maintenance time and replacement costs.
  • High Performance: The high rate discharge profile supplies the necessary power for short, intensive load events — ideal when your UPS must sustain heavy equipment briefly during outages.
  • Protection for Critical Systems: Use this replacement UPS battery to safeguard servers, storage, telecommunications, and emergency power systems from unexpected power loss.
  • Practical Applications: Suited for UPS systems, emergency backup setups, telecom cabinets, datacenter racks, and compatible tools requiring this battery specification.
  • Easy Swap-In: Install using your existing cables and hardware to maintain factory connections and simplify replacement procedures.
  • Fast Shipping & Assurance: In-stock availability with same day shipping, backed by professional customer support and a 1 year warranty for confidence in your purchase.

Don’t wait until your UPS fails—secure a reliable, long-lasting battery for your APC SU1250 now. Purchase this high-performance UPS battery today to restore protection and keep critical systems running smoothly.

Technical Specifications

Voltage24 Volts
Amp Hours18 Ah
Terminal TypeSpecial Connector
Length (in.)7.13
Width (in.)6.0
Height (in.)6.59
Weight (lb.)25.3

Product Highlights

  • Brand Replacement : APC SU1250
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.