APC SRT1500RMXLA UPS Compatible Replacement Battery Set
⚠️ Quick Reminder
🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.
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Battery Care Guide
Battery Care Guide
Battery Usage and Maintenance Guidelines 🔋
Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.
1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱
Initial Charge
- Fully charge the battery overnight prior to first use.
Conditioning (First 2–6 Charge Cycles)
- Operate the device until the battery reaches approximately 20% capacity.
- Avoid premature recharging.
- Do not allow the battery to fully discharge during the initial cycles.
Post-Conditioning
- Recharge the battery only when necessary.
- These batteries are capable of approximately 500 charge cycles:
- Once daily → ~500 days
Twice daily → ~250 days
Note: Even a partial recharge is considered a full cycle.
2. Sealed Lead Acid (SLA) Batteries 💡
- No conditioning required.
- Maintain the battery in a fully charged state; avoid complete discharge.
- Capable of 300–400 charge cycles.
- Expected service life: 2–3 years, depending on usage conditions.
3. Laptop Batteries (Lithium-Ion) 💻
Initial Charge
- Fully charge the battery overnight prior to first use.
Conditioning (First 2–6 Charge Cycles)
- Charge fully, then discharge to approximately 20% capacity.
- Avoid complete discharge, as some devices may not detect a fully drained battery.
Post-Conditioning
- Minimize frequent plugging and unplugging.
- Allow the battery to discharge moderately at least once per month to maintain optimal performance.
- Occasional cycling is recommended to sustain battery health.
Professional Recommendation
Adhering to these guidelines will enhance battery longevity and ensure reliable performance.
For further assistance regarding your battery or order, our customer support team is available to provide guidance.
Delivery and Shipping
Delivery and Shipping
⚡ Everything You Need to Know About Shipping with BatteryWeb (USA)
We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:
🚚 Shipping & Delivery
Most orders ship next business day (some products like sealed lead acid may take a little longer).
Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).
We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.
Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.
Transit times shown are estimates only (business days, no weekends/holidays).
🌍 Shipping Restrictions
Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.
PO Box deliveries are only available via USPS.
At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.
📦 Important Notes
Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.
If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.
💲 Currency & Pricing
All prices are shown in USD.
Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.
⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.
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.
🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).
Volts & Amps
12 Volts | 5.5 Ah
Terminal Type
F2
SRT1500RMXLA Battery Replacement for APC UPS Systems
Ensure reliable power protection with this high-performance APC SRT1500RMXLA replacement battery set, designed specifically for APC UPS units. This complete set includes eight SigmasTek SP12-5.5HR batteries, engineered to provide stable output, consistent runtime, and dependable backup for critical systems.
Whether you're safeguarding servers, network devices, or sensitive electronics, this replacement battery offers a cost-effective alternative to OEM units while maintaining or exceeding original performance standards. With spill-proof construction and low maintenance requirements, it helps protect equipment and maintain uptime during unexpected power interruptions.
Key Features & Benefits
- High-rate discharge design, optimized for UPS applications
- Valve-regulated, spill-proof construction for safety and maintenance-free use
- Low self-discharge for long shelf life and readiness
- High vibration resistance for rack-mounted UPS systems
- Factory-tested for consistent quality and performance
- Includes 1-year manufacturer warranty
Technical Specifications
- Brand: SigmasTek
- Model: SP12-5.5HR
- Quantity: 8 batteries (full replacement set)
- Voltage: 12V
- Capacity: 5.5Ah
- Chemistry: Sealed Lead Acid (VRLA)
- Terminal Type: F2
- Certifications: UL Recognized, CE Certified
- Condition: Brand New
Compatible Models
- APC SRT1500RMXLA UPS
- APC SRT1500RMXLA-NC UPS
This set works as a direct replacement for SRT1500RMXLA-NC units and is suitable for systems requiring equivalent electrical specifications.
Why Choose This Replacement Battery?
This SRT1500RMXLA UPS battery set delivers reliable performance without the premium OEM price. Ideal for short, high-power discharge cycles, each battery ensures stable runtime during outages. Spill-proof design increases safety, and low maintenance reduces long-term operating costs for IT and business environments.
Installation & Maintenance
- Designed for easy installation using original APC cables and hardware
- No special tools required
- Proper charging after installation ensures maximum battery life and optimal UPS performance
Applications / Use Cases
- Uninterruptible Power Supply (UPS) systems
- Data centers and server rooms
- Network and telecom equipment
- Emergency power backup systems
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Payment & Security
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