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SigmasTek  |  SKU: BW-3339

APC RBC48 High Performance Replacement Battery Cartridge

Sale price $69.98 USD Regular price $101.48
Shipping calculated at checkout.

➤ Set of 2 assembled SigmasTek 12V 7.5 AH batteries for APC RBC48

➤ Plug & Play cartridge ready for quick installation

➤ High rate discharge and spill-proof design

➤ U.L. recognized with superior performance and reliability

➤ Factory fresh batteries with 1-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

24 Volts | 7.5 Ah

Terminal Type

Special Connector

Compatible Replacement Battery Cartridge for APC RBC48 — SigmasTek Plug & Play Cartridge (2-Battery)

Replace your APC RBC48 battery cartridge quickly with this compatible replacement battery cartridge containing two SigmasTek batteries. Engineered for compatibility, performance, and reliability, this Plug & Play cartridge arrives pre-assembled with wire harnesses, connecting plates, and terminal covers so you can install a ready-to-use replacement UPS battery solution with minimal downtime.

Key Specifications

  • Compatible UPS model: APC RBC48
  • Configuration: Compatible Replacement Battery Cartridge (Plug & Play)
  • Contains: two SigmasTek batteries
  • Battery voltage (listed): 12 Volts
  • Battery capacity (listed): 7.5 AH
  • Assembly: Two batteries are already assembled with wire harnesses, connecting plates and terminal covers
  • Design: High Rate Discharge Design
  • Type: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized
  • Condition: Brand New, Factory Fresh Batteries
  • Warranty: 1 Year Warranty
  • Additional product reference lines from listing: Two 12V 18AH batteries are already assembled (as listed), and SigmasTek24 Volts7.5 AhSpecial ConnectorAPC RBC (as listed)

Benefits

This pre-assembled compatible replacement battery cartridge is designed to reduce installation time and eliminate wiring errors. The plug & play nature makes it an ideal choice for technicians and facility managers who need to swap out depleted units quickly. With a high rate discharge design and valve regulated construction, this cartridge supports high-current UPS demands while remaining spill-proof and low-maintenance.

The cartridge is suitable for uninterruptible power supply units, emergency power systems, and battery-powered tools that rely on the APC RBC48 form factor. As a long-lasting battery option, the assembled unit benefits from low self-discharge and high vibration resistance, delivering reliable power under both stable and more challenging conditions. U.L. recognition and factory-fresh condition provide additional peace of mind.

Note: Specifications in the product text include both 12V 7.5 AH and a listed reference to two 12V 18AH batteries; consult your APC RBC48 documentation or contact our support team if you need clarification on the exact configuration for your installation. Our technically knowledgeable staff tests every cartridge to help ensure it meets or exceeds OEM expectations and to confirm compatibility prior to shipping.

Replace your APC RBC48 cartridge with this ready-to-install, compatible solution today and get back to full runtime quickly. Order now for fast shipping and a reliable long-lasting battery replacement.


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