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SigmasTek  |  SKU: BW-4374

APC SURT15KRMXLT-TF5 UPS High Performance Replacement Battery Set

Sale price $738.99 USD Regular price $1,081.11
Shipping calculated at checkout.

➤ Includes 64 SigmasTek SP12-5.5HR batteries (12V 5.5AH) for APC SURT15KRMXLT-TF5 UPS

➤ High rate discharge supports critical UPS loads

➤ Valve regulated, spill-proof for secure installation

➤ Low self-discharge technology increases battery longevity

➤ Factory fresh with 1 year warranty for assurance


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ 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 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

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: 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

Replacement Battery Set for APC SURT15KRMXLT-TF5

Ensure continuous protection for your APC SURT15KRMXLT-TF5 with a professionally tested replacement UPS battery set. This kit includes SigmasTek SP12-5.5HR batteries, delivering reliable compatibility and strong discharge capability for demanding backup power environments. Choose a solution built for performance, safety and long service life.

Key Specifications

  • Compatible UPS model: APC SURT15KRMXLT-TF5
  • Quantity: 64 batteries per set
  • Battery brand: SigmasTek
  • Battery model: SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation note: Use all existing cables and hardware from original configuration

Benefits

This replacement UPS battery set offers a long-lasting battery upgrade for the APC SURT15KRMXLT-TF5, restoring full UPS function and dependable runtime. The high rate discharge design makes it a strong high-performance UPS battery choice for short bursts of high power demand, commonly experienced during utility interruptions or failover events. Low self-discharge reduces maintenance overhead and helps preserve stored energy over extended standby periods.

Constructed to be valve-regulated and spill-proof, these batteries minimize maintenance risks and promote safer handling and installation. High vibration resistance is ideal for rack-mounted or transit-prone installations where mechanical stress can otherwise degrade battery life. With U.L. recognition and CE certification, this battery set meets industry expectations for safety and quality, and each unit ships factory fresh and tested by our technical staff.

Typical applications include uninterruptible power supply (UPS) systems, emergency power supply configurations, and battery powered tools used in conjunction with backup systems. For facilities managers and IT professionals looking to replace aging battery banks, this SigmasTek kit combines reliability with cost-effectiveness and rapid shipping for in-stock orders.

Replace your APC SURT15KRMXLT-TF5 batteries today — purchase this dependable, high-performance replacement UPS battery set to keep your critical systems protected.


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