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SigmasTek  |  SKU: BW-1812

12 Volt 18 Amp UPS High Performance Compatible Replacement Battery

Sale price $54.00 USD Regular price $76.50
Shipping calculated at checkout.

➤ High rate discharge design for reliable short bursts of power

➤ Valve regulated, spill proof, and maintenance-free battery

➤ Low self-discharge for longer shelf life

➤ High vibration resistance for extended durability

➤ Factory fresh 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 | 18 Ah

Terminal Type

Nut & Bolt

UPS12-18 (NB) Replacement Battery — Compatible with UPS12-18 (NB)

Depend on this replacement UPS12-18 (NB) battery for dependable compatibility, strong discharge capability, and robust safety features. Designed for applications that need high current for short durations, this high-performance UPS battery combines valve-regulated, spill-proof construction and low self-discharge characteristics to ensure readiness and reliable operation in critical systems. Ideal for UPS units, emergency power systems, and battery-powered tools, this unit delivers the performance you expect.

Key Specifications

  • High Rate Discharge Design
  • Valve Regulated Spill Proof Construction
  • Low Self-discharge
  • High Vibration Resistance
  • U.L. Recognized and CE Certified
  • Superior Performance
  • Brand New, Factory Fresh
  • 1 Year Warranty
  • Compatible Applications: Uninterruptible Power Supply (UPS) Units, Emergency Power Supply, Battery Powered Tools
  • Designed specifically for high rate discharge UPS applications where higher power output is required over short periods

Benefits

The replacement UPS12-18 (NB) offers enhanced durability thanks to its valve regulated, spill-proof design, making it safe for installation in enclosed equipment and confined spaces. High vibration resistance improves longevity in racks and mobile installations, while low self-discharge ensures the battery remains ready for use after storage. These attributes combine to form a long-lasting battery solution that reduces maintenance and replacement frequency.

As a high-performance UPS battery, the UPS12-18 (NB) supports short, high-current demands typical of UPS switchover events, alarm systems, and emergency lighting. The product ships brand new and factory fresh, and every battery is validated by our technically knowledgeable staff to meet or exceed OEM specifications—giving you the confidence of compatibility and performance.

Typical applications include Uninterruptible Power Supply (UPS) units protecting servers and networking equipment, secondary or emergency power supplies for critical infrastructure, and battery-powered tools and devices that require brief bursts of elevated current. Certifications from U.L. and CE provide assurance for commercial and industrial deployments.

Secure your replacement UPS12-18 (NB) high-performance UPS battery today and enjoy reliable backup power with quick shipping. Purchase now to protect your systems with a long-lasting battery you can trust.


Payment & Security

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