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SigmasTek  |  SKU: BW-1140

APC SU2000 High Performance Replacement Battery By SigmasTek

Sale price $153.99 USD Regular price $219.86
Shipping calculated at checkout.

➤ 12V, 18Ah capacity for high-demand UPS systems

➤ Nut & bolt terminals for secure, reliable connections

➤ Designed specifically for APC SU2000 UPS

➤ Long-lasting and durable battery built for frequent use


📦🚀 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 | 18 Ah

Terminal Type

Nut & Bolt

SigmasTek 12V 18Ah Nut & Bolt Replacement for APC SU2000

When it’s time to replace the battery in your APC SU2000 UPS, the SigmasTek 12V 18Ah nut & bolt battery provides a direct, robust solution. This replacement UPS battery is engineered for reliable output and extended service life, delivering steady power to maintain uptime for your critical equipment. Designed to match the performance needs of the APC SU2000, SigmasTek offers a durable, easy-to-install option for both professional and consumer use.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Compatibility: Perfect match for APC SU2000 UPS model

Benefits

This long-lasting battery is built to withstand frequent use and deliver consistent power for UPS systems, making it an ideal choice for server rooms, network closets, and critical power applications. As a high-performance UPS battery, the 18Ah capacity provides extended runtime compared to smaller cells, giving your APC SU2000 more time to ride through outages or to perform orderly shutdowns of connected equipment.

Durability is emphasized through rugged construction and quality terminals—the nut & bolt design ensures secure, low-resistance connections suitable for higher-capacity applications. Typical uses include uninterruptible power supplies, backup power for communication systems, emergency lighting, and other mission-critical devices that require dependable 12V sources.

SigmasTek’s battery is promoted for reliable power and long-life performance, and the plug-and-play nature of the installation simplifies maintenance for technicians and facility staff. The higher 18Ah capacity makes this replacement UPS battery especially valuable where extended runtime is required, or where reducing the frequency of battery swaps is a priority.

Selecting this SigmasTek battery for your APC SU2000 helps you maintain uptime, protect sensitive gear, and reduce downtime risk. It balances cost, reliability, and ease of installation for professional deployments and home setups alike.

Ready to upgrade your APC SU2000 with a trusted, high-performance replacement UPS battery? Add the SigmasTek 12V 18Ah nut & bolt battery to your cart now and secure reliable backup power.


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