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-10257

BCI Group Size U1 IT High Performance Compatible Replacement Battery 24.72 lb

10% off
New arrival
Sale price $122.99 USD Regular price $136.99
Shipping calculated at checkout.
Brand new, factory fresh for reliable performance
Absorbent Glass Mat (AGM) technology for enhanced durability
Maintenance-free with spill-proof construction for safety
U.L. recognized and CE certified for quality assurance
1-year warranty included for peace of mind
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

Internal Thread

SigmasTek BCI Group Size U1 IT SLA Battery — Compatible with BCI Group Size U1 IT

This Brand New, factory-fresh SigmasTek replacement battery is engineered for exact compatibility with your BCI Group Size U1 IT device. Built with sealed lead acid (SLA) chemistry and AGM construction, this pack delivers reliable performance, consistent power delivery, and dependable uptime for critical applications. If you need a high-performance battery that fits your BCI Group Size U1 IT specification, this long-lasting battery provides maintenance-free convenience and trustworthy operation whenever power matters most.

Key Specifications

  • Brand: SigmasTek
  • Model / Compatible: BCI Group Size U1 IT
  • Chemistry: Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal: IT (Internal Thread)
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Durability: AGM construction and rugged SLA design resist vibration and shock for extended service life.
  • Long life: Built as a long-lasting battery to offer consistent cycles and reliable reserve capacity under regular use.
  • High performance: Optimized for stable voltage delivery and efficient charge acceptance, making it a high-performance battery suitable for demanding environments.
  • Maintenance-free: Sealed, spill-proof design removes the need for regular electrolyte checks and simplifies installation and ownership.
  • Safety and compliance: U.L. recognition and CE certification ensure adherence to established quality and safety standards.
  • Typical applications: Ideal as a replacement battery for mobility devices, backup power in UPS and emergency power systems, medical equipment, portable tools, and other small equipment requiring a BCI Group Size U1 IT pack.
  • Easy swap: Designed for drop-in compatibility — use existing cabling and mounting hardware for a straightforward replacement.

Ready to replace your old pack? Buy this SigmasTek BCI Group Size U1 IT replacement battery now to secure a reliable, long-lasting battery solution with factory-fresh quality and a 1 year warranty. Order today to restore dependable power.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeInternal Thread
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : BCI Group Size
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment 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.