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SigmasTek  |  SKU: BW-2781

APC CURK12 UPS Compatible Replacement Battery Set

Sale price $131.99 USD Regular price $193.14
Shipping calculated at checkout.

➤ Includes 8 brand new SigmasTek SP12-7.5HR batteries (12V 7.5AH)

➤ High rate discharge design for short bursts of high power

➤ Valve regulated, spill-proof construction for safety and durability

➤ Low self-discharge ensures longer shelf life and readiness

➤ U.L. recognized and CE certified 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

12 Volts | 7.5 Ah

Terminal Type

F2

Replacement Battery Set for APC CURK12 UPS (Compatible with APC CURK12)

Upgrade your APC CURK12 with a reliable, high-quality replacement UPS battery set engineered for consistent performance and dependable runtime. This kit is designed specifically for the APC CURK12 UPS and delivers the power and reliability you expect from a high-performance UPS battery. Whether you need uninterrupted power for critical equipment or a long-lasting battery solution for emergency power, these SigmasTek batteries offer superior construction and tested performance to restore your UPS to OEM-level capability.

Key Specifications

  • Includes: 8 SigmasTek SP12-7.5HR batteries
  • Battery voltage: 12 Volts
  • Capacity: 7.5 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge
  • Features: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility note: Requires use of existing cables and hardware from your original APC CURK12 configuration

Benefits

These replacement batteries for the APC CURK12 are built for durability and sustained high performance. The high rate discharge design supports short bursts of elevated power demand, making this kit ideal when your APC CURK12 needs higher output for brief periods. The valve regulated, spill-proof construction reduces maintenance and improves safety compared to flooded cells, while low self-discharge helps preserve capacity during storage so your long-lasting battery remains ready when you need it.

With high vibration resistance and factory-fresh manufacturing, this high-performance UPS battery set stands up to rigorous conditions commonly found in server rooms, telecommunications racks, and mobile installations. The U.L. and CE recognition underscores reliable quality control and safety compliance. Tested by our technical staff to meet or exceed OEM specifications, these batteries deliver the dependability administrators expect from a replacement UPS battery for mission-critical equipment.

Typical applications include Uninterruptible Power Supply (UPS) units like the APC CURK12, emergency power supply systems, and battery powered tools where quick power delivery is essential. If you manage data centers, network closets, or emergency backup infrastructure, this replacement UPS battery set provides the dependable runtime and quick delivery characteristics necessary to maintain uptime.

Need assistance selecting or installing the kit for your APC CURK12? Contact our customer service at or e-mail for expert help. Orders for in-stock items are typically shipped within 24 hours.

Restore full runtime and protect your equipment today—purchase this high-performance, long-lasting battery set for the APC CURK12 with confidence and get back to reliable, uninterrupted power.


Payment & Security

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