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-4834

Tripp Lite Smart 1250XL UPS High Performance Replacement Battery Set 49.45 lb

18% off
New arrival
Sale price $245.99 USD Regular price $300.99
Shipping calculated at checkout.
Includes 2 SigmasTek SP12-35 NB batteries (12V 35 AH) for Tripp Lite Smart 1250XL UPS
High rate discharge design for superior short burst power
Valve regulated spill-proof batteries for safe and clean operation
Low self-discharge and vibration resistance increase reliability
Brand new with 1-year warranty and OEM specification testing
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

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement Battery Set for Tripp Lite Smart 1250XL UPS - SigmasTek SP12-35 NB

Tailored for the Tripp Lite Smart 1250XL UPS, this replacement battery set delivers compatibility, reliable performance, and proven safety. The kit contains two SigmasTek SP12-35 NB batteries, each 12 Volts 35 AH, engineered to deliver the quick power needed by the Smart 1250XL during outages. If you require a replacement UPS battery that combines high-performance UPS battery attributes with the endurance of a long-lasting battery, this package meets those needs. Remember to reuse your original cables and hardware when installing these batteries.

Key Specifications

  • Includes: 2 x SigmasTek SP12-35 NB batteries
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek
  • High Rate Discharge Design
  • Valve Regulated Spill Proof Construction
  • Low Self-discharge
  • High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year

Benefits

Designed for dependable, long-term service, these SigmasTek batteries provide the high current necessary for UPS operation while maintaining a low-maintenance profile. The high rate discharge design supports short-duration, high-power events common in UPS operation; the valve-regulated, spill-proof construction minimizes risk and keeps maintenance low. Low self-discharge helps retain capacity during idle periods so the batteries are ready when an emergency strikes. High vibration resistance and recognized U.L./CE certification add another layer of reliability and safety for mission-critical installations.

This replacement battery set is appropriate for Uninterruptible Power Supply (UPS) units like the Tripp Lite Smart 1250XL, emergency power systems, and compatible battery-powered tools. All batteries are factory fresh and tested by experienced technicians, ensuring they meet or exceed OEM specifications. With a 1 year warranty and rapid shipping for in-stock items, this set is a practical and reliable alternative to OEM replacement packs.

Installation requires reusing the Smart 1250XL’s existing cables and hardware. For facilities and IT professionals who need to minimize downtime and maintain backup readiness, this high-performance, long-lasting replacement UPS battery set is a dependable choice.

Restore protection and runtime to your Tripp Lite Smart 1250XL—purchase this tested, high-performance replacement UPS battery set today and safeguard your equipment against power interruptions.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)49.4

Product Highlights

  • Brand Replacement : Tripp Lite
  • 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.