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SigmasTek  |  SKU: BW-4606

APC SRT5KRMXLTUS UPS High Performance Replacement Battery Set

Sale price $184.99 USD Regular price $270.27
Shipping calculated at checkout.

➤ Includes 16 fresh SigmasTek SP12-5.5HR batteries (12V 5.5 AH)

➤ High rate discharge design ensures powerful UPS performance

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

➤ Low self-discharge and high vibration resistance for reliability

➤ Backed by 1-year warranty and quality certifications


📦🚀 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 SRT5KRMXLTUS

Upgrade and restore your APC SRT5KRMXLTUS with a compatible, reliable power solution. This replacement UPS battery set is engineered for dependable runtime, consistent performance, and high discharge capability when your critical equipment needs power the most. Designed as a drop-in replacement solution for the APC SRT5KRMXLTUS, these SigmasTek batteries deliver the dependable backup power required for data centers, network closets, and mission-critical systems. Whether you’re performing a scheduled refresh or replacing aged cells, this high-performance UPS battery set brings renewed confidence to your UPS infrastructure.

Key Specifications

  • Compatible UPS Model: APC SRT5KRMXLTUS
  • Battery Model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH (Amp-hours)
  • Quantity Included: 16 batteries
  • Terminal Type: F2 (as listed)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Durability: Built with valve regulated, spill proof construction and high vibration resistance, these batteries are rugged for demanding UPS environments.
  • Long Life: Low self-discharge chemistry and factory-fresh condition help ensure a long-lasting battery pack that maintains capacity over time—ideal for a long-lasting battery replacement program.
  • High Performance: Engineered for high rate discharge applications, this high-performance UPS battery set provides the burst output needed for short-duration, high-power events typical of UPS use.
  • Reliable Backup: Specifically matched to APC SRT5KRMXLTUS installations, these batteries provide stable emergency power supply performance to protect servers, networking gear, and storage arrays.
  • Versatile Applications: Perfect for Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery powered tools that require 12V 5.5Ah modules.
  • Tested and Guaranteed: Each battery is tested to meet or exceed OEM specifications and shipped with a 1 year warranty for peace of mind.

This replacement UPS battery bundle for APC SRT5KRMXLTUS makes maintenance fast and straightforward. Please note: you will need to reuse your original cables and hardware to install the new batteries. If you want a dependable, affordable, and tested replacement UPS battery option for your APC SRT5KRMXLTUS, order now. Buy today and get fast shipping on in-stock items—restore full runtime and protect your critical systems with a high-performance UPS battery pack you can trust.


Payment & Security

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