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SigmasTek  |  SKU: BW-4452

APC SURT10KRMXL6U-TF5 High Performance UPS Replacement Battery Set

Sale price $369.99 USD Regular price $540.57
Shipping calculated at checkout.

➤ Includes 32 SigmasTek SP12-5.5HR batteries (12V 5.5AH) for APC SURT10KRMXL6U-TF5

➤ High rate discharge design for demanding UPS applications

➤ Valve regulated and spill-proof for safe, maintenance-free use

➤ Low self-discharge extends battery readiness and lifespan

➤ Certified quality with 1-year warranty coverage


📦🚀 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

SigmasTek SP12-5.5HR Replacement Battery Set for APC SURT10KRMXL6U-TF5 UPS Unit

Designed for direct compatibility and dependable power delivery, this replacement UPS battery set is tailored for the APC SURT10KRMXL6U-TF5 UPS unit. The kit contains thirty-two SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) that provide a high-performance UPS battery solution to restore runtime and reliability. Ideal for data centers and critical systems, this long-lasting battery set brings superior performance and consistent results when you need backup power most.

Key Specifications

  • Battery model: SigmasTek SP12-5.5HR
  • Quantity: 32 batteries per set
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Terminal type: F2
  • Design: High Rate Discharge
  • Construction: Valve Regulated Spill Proof
  • Self-discharge: Low self-discharge
  • Durability: High vibration resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand new, factory fresh
  • Performance: Superior performance, tested to meet or exceed OEM specifications
  • Warranty: 1 Year
  • Notes: Use existing cables and hardware from original configuration to connect new UPS batteries

Benefits

  • Reliable runtime extension: These high-rate discharge cells supply the necessary power for abrupt or heavy loads, making them a trusted replacement UPS battery for the APC SURT10KRMXL6U-TF5.
  • Long-lasting battery performance: Low self-discharge and factory-fresh construction help maintain capacity during storage and deliver consistent service life in active use.
  • High performance under stress: Specifically designed for UPS applications where short bursts of higher power are required, delivering stable output during critical events.
  • Certified safety and quality: U.L. recognition and CE certification ensure the cells meet recognized safety and manufacturing standards.
  • Versatile applications: Ideal for Uninterruptible Power Supply (UPS) units, emergency power systems, and compatible battery-powered tools where SLA cells and F2 terminals are used.
  • Simple installation: Replace your depleted pack with this complete set while reusing your original cables and hardware—minimizing downtime and installation complexity.

Don’t risk downtime—upgrade your APC SURT10KRMXL6U-TF5 with this high-performance UPS battery set from SigmasTek. Order today to secure a long-lasting battery replacement with a 1 year warranty and fast fulfillment.


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