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SigmasTek  |  SKU: BW-4467

APC SRT10KRMXLT-10KTF Compatible Replacement UPS 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 SRT10KRMXLT-10KTF UPS

➤ High rate discharge for demanding UPS power requirements

➤ Spill-proof valve regulated construction for leak protection

➤ Low self-discharge extends battery readiness and lifespan

➤ Comes with 1-year warranty and fast shipping


📦🚀 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.
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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 Replacement Battery Set for APC SRT10KRMXLT-10KTF UPS

Designed specifically for the APC SRT10KRMXLT-10KTF, this replacement UPS battery set includes 32 SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) to deliver dependable backup power and consistent performance. If you’re replacing worn cells or rebuilding a battery pack, this set provides compatibility, certified quality, and the high-rate discharge capability required by demanding UPS installations.

Key Specifications

  • Battery count: 32 batteries per set
  • Battery model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH (Amp-hours)
  • Brand: SigmasTek
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Compatibility: Replacement batteries for APC SRT10KRMXLT-10KTF UPS
  • Applications: Uninterruptible Power Supply (UPS) Units, Emergency Power Supply, Battery Powered Tools
  • Installation note: Must use all existing cables and hardware from original configuration to connect the new UPS batteries
  • Performance: Superior Performance for high rate discharge UPS applications

Benefits

  • Robust construction for long service life — Valve regulated, spill-proof construction and low self-discharge characteristics make these batteries a durable choice for long-term UPS service. They maintain readiness longer between replacements, delivering the long-lasting battery performance administrators expect.
  • High current readiness — With a high rate discharge design, these cells supply the necessary surge capability for UPS systems that demand quick bursts of power. Use this high-performance UPS battery set to recover gracefully during grid transitions and heavy loads.
  • Reliability under stress — High vibration resistance ensures steady operation in environments with mechanical stress or rack movement. This reliability is essential in server rooms, telecom racks, and industrial settings where consistent backup is critical.
  • Certified and factory tested — U.L. Recognized and CE Certified, each battery arrives factory-fresh and tested to meet or exceed OEM specifications. The included 1 Year warranty offers added confidence in your replacement UPS battery purchase.
  • Application versatility — Suitable for UPS units, emergency power systems, and battery-powered tools, this set is ideal for IT infrastructure, emergency lighting, medical equipment backups, and more.

Don’t wait until your APC SRT10KRMXLT-10KTF shows reduced run-time. Replace the pack with a tested, high-quality set of SigmasTek SP12-5.5HR batteries for a reliable, long-lasting battery solution. Order now to ensure fast dispatch and dependable backup power when it matters most.


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