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SigmasTek  |  SKU: BW-5218

Para Systems Minuteman MSU 1400i UPS High Performance Compatible Replacement Battery Set

Sale price $77.60 USD Regular price $112.53
Shipping calculated at checkout.

➤ Two 12 Volt 18 AH SigmasTek batteries for Para Systems Minuteman MSU 1400 UPS

➤ Valve regulated, spill proof design with high rate discharge

➤ Low self-discharge and vibration resistant for extended life

➤ Certified safe with U.L. and CE marks

➤ Factory fresh, tested, and backed by a 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 | 18 Ah

Terminal Type

Nut & Bolt

SigmasTek SP12-18HR (12V 18AH) Replacement Battery Set for Para Systems Minuteman MSU 1400i UPS

Bring dependable performance back to your Para Systems Minuteman MSU 1400i with this compatible replacement UPS battery set. This package contains two SigmasTek SP12-18HR batteries (12 Volts, 18 AH), engineered for high-rate discharge situations and built to deliver consistent, reliable power when your MSU 1400i needs it most. These brand new, factory-fresh batteries are a high-performance UPS battery choice designed to provide a long-lasting battery solution for critical applications. Note: please reuse all existing cables and hardware from your original configuration to install these replacement UPS batteries correctly.

Key Specifications

  • Battery model: SigmasTek SP12-18HR
  • Voltage: 12 Volts
  • Capacity: 18 AH (Amp-hours)
  • Quantity: 2 batteries per set
  • Terminal: Nut & Bolt
  • Construction: Valve Regulated, Spill Proof
  • Design: High Rate Discharge Design
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible with: Para Systems Minuteman MSU 1400i Uninterruptible Power Supply (UPS)

Benefits

This replacement UPS battery set provides robust durability and dependable performance tailored to UPS and critical backup systems. The high rate discharge capability supports the MSU 1400i’s demands for rapid power delivery during outages or transient loads. Because the batteries are valve-regulated and spill-proof, they require minimal maintenance and are safer to use in enclosed UPS cabinets. Low self-discharge ensures capacity remains available after periods of storage, and high vibration resistance helps maintain integrity and service life in demanding environments.

These SigmasTek units are U.L. Recognized and CE Certified, reflecting adherence to industry safety and performance standards. They are especially suitable as a long-lasting battery for uninterruptible power supply units, emergency power source systems, and battery-powered tools. Each battery set is factory-tested by experienced technicians to meet or exceed OEM specifications, ensuring reliable, high-performance operation in your Para Systems Minuteman MSU 1400i.

We aim to minimize downtime—most in-stock replacement UPS battery orders ship within 24 hours—so you can quickly restore full protection to your equipment. If you require assistance selecting or installing the correct battery set, our customer service team is available to help. Choose a replacement that combines proven construction, certified performance, and a one-year warranty for peace of mind.

Ready to replace the batteries in your Para Systems Minuteman MSU 1400i? Purchase this high-performance, long-lasting battery set today and ensure reliable backup power when you need it most.


Payment & Security

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