IBM 90P4831 UPS High Performance Replacement Battery 25.32 lb
— Ready to ship immediately
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.
IBM 90P4831 UPS High Performance Replacement Battery is backordered and will ship as soon as it is back in stock.
Let customers speak for us
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
✉ sales@batteryweb.com
Battery Care Tips
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
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
⚠️ 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.
Category
Brand Replacement
SigmasTek
Volts & Amps
12 Volts | 18 Ah
Terminal Type
Nut & Bolt
SigmasTek SP12-18HR Replacement Battery for IBM UPS 90P4831
This SigmasTek SP12-18HR replacement UPS battery is engineered as a direct-fit solution for the IBM UPS 90P4831, delivering reliable compatibility, superior performance, and proven reliability for critical backup systems. Designed for high-rate discharge UPS applications, this long-lasting battery provides the burst power needed when your IBM UPS 90P4831 experiences short-duration, high-load events. Please note that you should reuse all existing cables and hardware from your original configuration to connect this replacement UPS battery safely and correctly.
Key Specifications
- Brand: SigmasTek
- Model: SP12-18HR
- Voltage: 12 Volts
- Capacity: 18 AH (Amp-hours)
- Quantity: 1 battery (single replacement)
- Terminal Type: Nut & Bolt
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof Construction
- Self-discharge: Low Self-discharge
- Durability: High Vibration Resistance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
Benefits
- Durability and reliability: The SP12-18HR is built with valve-regulated, spill-proof construction and high vibration resistance to withstand demanding operating environments. This helps ensure a long-lasting battery for your IBM UPS 90P4831.
- High performance when it matters: Specifically designed as a high-rate discharge battery, this high-performance UPS battery supplies higher power output over short periods—ideal for handling surge events and maintaining critical loads during transfer or failure.
- Low maintenance and long shelf life: With low self-discharge characteristics and factory-fresh condition, you can expect dependable readiness and extended standby life compared to used or recycled alternatives.
- Safety and compliance: U.L. recognition and CE certification give you confidence that this replacement UPS battery meets established safety and quality benchmarks.
- Typical applications: Optimized for Uninterruptible Power Supply (UPS) units like the IBM UPS 90P4831, emergency power systems, and battery-powered tools that require dependable short-duration power delivery.
- Tested to OEM-level performance: Technically trained staff personally test each unit to meet or exceed OEM specifications for consistent operation and peace of mind.
Installation is straightforward when you reuse the original cables and hardware; if you need assistance choosing the correct replacement UPS battery for your IBM UPS 90P4831, call our customer service at or e-mail us for expert help. Orders for in-stock items typically ship within 24 hours.
Buy your SigmasTek SP12-18HR replacement UPS battery for the IBM UPS 90P4831 with confidence today — get a high-performance UPS battery and a long-lasting battery solution backed by a 1 year warranty. Add to cart now to ensure uninterrupted power protection.
Technical Specifications
Product Highlights
- Brand Replacement : IBM UPS
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.




