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SigmasTek  |  SKU: BW-2375

APC SU48RMXLBP3U UPS High Performance Compatible Replacement Battery Set

Sale price $197.99 USD Regular price $289.81
Shipping calculated at checkout.

➤ Contains 8 SigmasTek SP12-9HR batteries (12V 9AH) for APC SU48RMXLBP3U

➤ High rate discharge design for UPS power bursts

➤ Valve regulated, spill-proof for maintenance-free safety

➤ Low self-discharge and vibration resistant for durability

➤ Certified quality with 1-year warranty included


📦🚀 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 | 9 AH

Terminal Type

F2

Replacement Battery Set for APC SU48RMXLBP3U - 8 x SigmasTek SP12-9HR (12V 9AH)

Keep your APC SU48RMXLBP3U UPS operating at peak readiness with this complete replacement UPS battery set. The package contains eight SigmasTek SP12-9HR batteries, each rated 12V 9AH and built for high rate discharge performance. These brand new, factory fresh batteries are designed to supply dependable, repeatable power for your APC SU48RMXLBP3U, ensuring your critical systems remain protected during power events.

Key Specifications

  • Includes: 8 x SigmasTek SP12-9HR batteries
  • Voltage: 12 Volts
  • Capacity: 9 AH (amp-hours)
  • Battery Type: Valve Regulated, Sealed Lead-Acid (SLA)
  • 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
  • Compatible With: APC SU48RMXLBP3U UPS unit
  • Note: All original cables and hardware must be reused to connect the new batteries

Benefits

This replacement UPS battery set offers a reliable, long-lasting battery option for the APC SU48RMXLBP3U, delivering the high discharge capability needed for short-duration, high-power events. The high rate discharge design ensures the UPS can supply peak loads without degradation in performance. Low self-discharge preserves capacity during downtime and reduces maintenance cycles, while high vibration resistance improves lifespan in rack-mounted systems and during shipping. As a high-performance UPS battery solution, these SigmasTek cells also carry U.L. recognition and CE certification for safety and compliance.

Every battery set is new from the factory and tested to meet or exceed OEM standards, giving you a dependable replacement that restores runtime and reliability to your APC SU48RMXLBP3U. Typical uses include uninterruptible power supply units, emergency power installations, and battery-powered tools that require fast discharge capability. With a 1 year warranty backing the product, you gain added assurance in the performance and longevity of your investment.

Don’t wait until a power event exposes depleted batteries — purchase this high-performance, replacement UPS battery set for the APC SU48RMXLBP3U now to ensure uninterrupted protection. Orders for in-stock items generally ship within 24 hours.


Payment & Security

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