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SigmasTek  |  SKU: BW-5331

Emerson 1500 UPS High Performance Replacement Battery

Sale price $54.00 USD Regular price $78.30
Shipping calculated at checkout.

➤ High Rate Discharge Design for dependable power delivery

➤ Valve Regulated Spill Proof design for safe, maintenance-free use

➤ Low Self-discharge extends battery life when idle

➤ High Vibration Resistance for use in mobile or industrial settings

➤ U.L. and CE Certified with a 1 Year Warranty for confidence


📦🚀 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 SP12-18 NB Replacement UPS Battery for Emerson 1500

Designed as the direct replacement UPS battery for the Emerson 1500, the SigmasTek SP12-18 NB (12 Volts, 18 AH) delivers dependable compatibility, superior performance, and proven reliability. This high-performance UPS battery is engineered for high rate discharge scenarios and is ideal when your Emerson 1500 requires a long-lasting battery that restores full runtime and protects critical equipment. Please note: you must reuse all existing cables and hardware from your original configuration to connect this replacement UPS battery.

Key Specifications

  • Brand: SigmasTek
  • Model / Part Number: SP12-18 NB
  • Voltage: 12 Volts
  • Capacity: 18 AH
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Self-Discharge: Low Self-discharge
  • Vibration Resistance: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Durable construction for reliable service: The valve regulated, spill-proof design and high vibration resistance ensure the battery withstands demanding UPS environments and transport vibrations.
  • Long life and low maintenance: Low self-discharge characteristics help this long-lasting battery retain charge during storage and deliver consistent performance when installed in your Emerson 1500 UPS.
  • High performance when it matters: Engineered for high rate discharge, this high-performance UPS battery supplies higher power output for short periods — perfect for heavy loads, surge events, and emergency power requirements.
  • OEM-level compatibility: Factory fresh and tested to meet or exceed OEM specifications, providing a reliable replacement that restores original runtime and protects connected equipment.
  • Flexible applications: Ideal for Uninterruptible Power Supply (UPS) units, emergency power systems, and selected battery-powered tools where a dependable 12V 18AH battery is required.
  • Certified safety: U.L. recognized and CE certified to meet safety and compliance standards for professional and consumer environments.

Our technical team personally tests every replacement battery for Emerson 1500 to ensure consistent, superior performance. If you need help selecting or installing the replacement UPS battery, call customer service at or e-mail our support team. Orders for in-stock items typically ship within 24 hours.

Ready to restore reliable backup power? Buy this replacement UPS battery for your Emerson 1500 today and get a high-performance, long-lasting battery backed by a 1 year warranty. Purchase now to secure fast shipping and trusted support.


Payment & Security

Payment methods

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