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SigmasTek  |  SKU: BW-4434

APC SRT10KRMXLT-IEC UPS Compatible Replacement Battery Set

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

➤ Includes 32 factory fresh SigmasTek SP12-5.5HR batteries

➤ High rate discharge design for consistent UPS performance

➤ Spill-proof, valve regulated for worry-free handling

➤ Low self-discharge to maintain charge over time

➤ Certified quality with one year warranty


📦🚀 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 SRT10KRMXLT-IEC - SigmasTek SP12-5.5HR (32-Pack)

Maintain mission-critical uptime for your APC SRT10KRMXLT-IEC with this carefully matched replacement UPS battery set. The kit includes 32 SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) tailored for high rate discharge performance. These brand new batteries combine safety-certified construction and low self-discharge behavior to keep your UPS ready and reliable when power interruptions occur.

Key Specifications

  • Quantity: 32 batteries per set
  • Battery Model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH (Amp-hours)
  • Terminal Type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Compatible With: APC SRT10KRMXLT-IEC UPS model
  • Applications: Uninterruptible Power Supply (UPS), Emergency Power Supply, Battery Powered Tools

Benefits

  • Built for Reliability — The valve regulated, spill-proof format and high vibration resistance ensure this replacement UPS battery set remains safe and durable in demanding installations.
  • Long-Lasting Battery Performance — Designed with low self-discharge, these cells are a long-lasting battery option for service technicians and maintenance teams who maintain spare kits for rapid replacement.
  • High-Performance Discharge — Purpose-built for high rate discharge situations, this pack delivers the immediate power required for your APC SRT10KRMXLT-IEC during short, intense loads or transfer events.
  • Versatile Use — Appropriate for use in UPS systems, emergency power supplies, and battery-powered tools, this set is an effective replacement UPS battery choice for many applications.
  • Professionally Tested — Our technical staff tests each set to ensure performance that meets or exceeds OEM standards. Remember to reuse your original cables and hardware when installing the new batteries.

Ready to secure dependable backup power for your APC SRT10KRMXLT-IEC? Purchase this high-performance UPS battery pack now and enjoy fast shipping on in-stock items plus the confidence of a 1 year warranty. Need help? Call or email our customer support team.


Payment & Security

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