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CyberPower CST135XLU Battery Replacement
CyberPower CST135XLU Battery Replacement Kit - 2x 12V 7AH High-Rate
Premium High-Rate UPS Power at Exceptional Value. As battery specialists since 2010, we deliver competitive pricing on genuine high-rate discharge batteries. The CyberPower CST135XLU kit includes two (2) premium 12V 7AH AGM batteries engineered to surpass industry standards. With guaranteed CyberPower compatibility, F2 terminals, and clearly specified dimensions (5.94" × 2.56" × 3.94"H), protect your critical systems with true high-rate performance backed by our 2-year replacement warranty.
High-Rate Design
UPS Optimized
2-Year Warranty
Free Replacement
Battery Specialist
Since 2010
Complete Kit
2 Batteries
Quick Specifications
Replaces: CyberPower CST135XLU original batteries
Specifications: 12V, 7Ah, Sealed Lead Acid AGM High-Rate - Kit of 2
Dimensions per battery: 5.94" × 2.56" × 3.94"H (151mm × 65mm × 100mm)
Average Lifespan: 3-5 years in typical UPS applications
Compatibility: CyberPower CST135XLU UPS systems
Superior Value & Performance
Total 14AH capacity
Immediate power
Maintenance-free
Free replacement
Trusted High-Rate Battery Features
- ✓ True High-Rate Design: Engineered for immediate power delivery in UPS applications
- ✓ Premium AGM Construction: Absorbs electrolyte for spill-proof reliability
- ✓ Complete 2-Battery Kit: Everything needed for CST135XLU replacement
- ✓ Industry-Leading Warranty: Full 2-year free replacement protection
- ✓ Exact CyberPower Compatibility: Direct replacement for reliable UPS operation
Package Contents:
- • Two (2) 12V 7AH High-Rate AGM Batteries
- • F2 Terminal Connections
- • 2-Year Free Replacement Warranty
- • NOTE: Re-use existing CyberPower wiring harness
No Assembly
Direct Drop-In
Replacement
Maintenance-Free
Sealed AGM
Design
Waterproof
Spill-Proof
Construction
Clearly Specified Dimensions & Technical Details
| CyberPower CST135XLU Kit Specifications | |
|---|---|
| Kit Contents | Two (2) 12V 7AH High-Rate Batteries |
| Battery Type | Sealed Lead Acid AGM, High-Rate Discharge |
| Voltage (per battery) | 12 Volts |
| Capacity (per battery) | 7 Amp Hours |
| Terminal Type | F2 (0.250" Faston Tab) |
| Length (per battery) | 5.94 inches (151mm) |
| Width (per battery) | 2.56 inches (65mm) |
| Height with Terminals | 3.94 inches (100mm) |
| Weight (per battery) | 6 lbs (2.7 kg) |
| Total Kit Weight | 12 lbs (5.4 kg) |
| Design Type | High-Rate Discharge |
| Warranty | 2-Year Free Replacement |
Premium High-Rate UPS Battery Technology
Why High-Rate Batteries Matter for UPS Systems
UPS systems demand immediate power delivery during outages to prevent data loss and business disruptions. Our high-rate discharge batteries feature:
- • Thinner Lead Plates: More surface area for rapid chemical reaction
- • Increased Plate Count: Higher discharge rate than general-purpose batteries
- • Optimized Chemistry: Engineered for immediate high-current delivery
- • Premium AGM Design: Absorbed electrolyte for maintenance-free operation
Protection Against System Failure
- • True High-Rate Performance: Meets CyberPower's demanding power requirements
- • Prevents Premature Failure: Unlike general-purpose battery substitutes
- • Industry-Exceeding Standards: Manufactured to surpass specifications
- • Reliable Emergency Power: Protects critical equipment when needed most
Value Comparison: High-Rate vs. General Purpose Batteries
| Feature | High-Rate CST135XLU | General Purpose |
|---|---|---|
| Power Delivery | Immediate high current | Slower discharge |
| UPS Compatibility | Fully rated capacity | Reduced capacity |
| System Protection | Prevents premature failure | May cause failure |
| Plate Design | Thin, multiple plates | Thick, fewer plates |
| Warranty | 2-year replacement | Often 1 year or less |
Guaranteed Compatibility & Applications
Direct Replacement For:
- CyberPower Model: CST135XLU UPS System
- Configuration: 2 batteries in series (24V total)
- Critical Applications: Home offices, small business systems, network equipment
- Protection For: Computers, routers, modems, gaming systems
Installation Notes:
- Simple Replacement: Direct drop-in using existing wiring harness
- F2 Terminals: Standard 0.250" Faston tabs for secure connections
- Complete Kit: Both batteries included for full system replacement
CyberPower Model Compatibility
| UPS Model | Battery Configuration | Our Kit |
|---|---|---|
| CST135XLU | 2×12V 7AH | Complete 2-Battery Kit |
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Common Customer Questions
Q: What battery replaces CyberPower CST135XLU?
A: This complete kit includes two (2) 12V 7AH high-rate AGM batteries that are exact replacements for the CyberPower CST135XLU UPS system.
Q: Which battery fits CyberPower CST135XLU systems?
A: Our kit provides two 12V 7AH batteries with F2 terminals, exact dimensions of 5.94" × 2.56" × 3.94"H per battery for guaranteed CyberPower compatibility.
Q: How long does the CST135XLU battery kit last in CyberPower UPS systems?
A: With premium high-rate construction, these batteries typically last 3-5 years in UPS applications, backed by our 2-year free replacement warranty.
Q: What are the exact dimensions of CST135XLU replacement batteries?
A: Each battery measures 5.94" length × 2.56" width × 3.94" height with terminals (151mm × 65mm × 100mm), weighing 6 lbs per battery.
Q: Why do I need high-rate batteries instead of general-purpose for my UPS?
A: UPS systems require immediate high-current delivery during power failures. General-purpose batteries cannot meet these demands and will cause premature system failure.
Why Choose High-Tech Battery Solutions
Battery Specialists Since 2010
With over a decade of experience providing UPS replacement batteries, we understand the critical importance of reliable backup power. Our high-rate discharge batteries are engineered specifically for UPS applications, ensuring your CyberPower systems receive immediate power when needed most.
Industry-Leading Quality & Support
The CST135XLU kit represents our commitment to excellence - genuine high-rate AGM technology manufactured to exceed industry standards, complete with a 2-year free replacement warranty, all at competitive pricing from trusted battery specialists. Explore our Origin batteries and other premium brands for additional power solutions.
Protect Your Systems with Proven Performance
The CyberPower CST135XLU Battery Replacement Kit delivers exceptional value with two premium 12V 7AH high-rate AGM batteries. With guaranteed CyberPower compatibility, true high-rate discharge design for immediate power delivery, and competitive pricing on this complete 2-battery solution, you're investing in reliable backup power. As battery specialists since 2010, we provide clearly specified dimensions and a 2-year free replacement warranty for your peace of mind.
Helpful Resources & Related Products
Learn more with our helpful battery videos or explore our complete selection of emergency lighting batteries. For premium automotive solutions, check out our XS Power AGM starting batteries or browse our NOCO jump starter collection.
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