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SigmasTek  |  SKU: BW-3439

Para Systems Minuteman MM300SS/1 UPS Compatible Replacement Battery Set

Sale price $32.99 USD Regular price $48.30
Shipping calculated at checkout.

➤ Includes 2 brand new SigmasTek 12V 7.5AH batteries

➤ High rate discharge for short bursts of power

➤ Valve regulated, spill-proof for leak-free operation

➤ Low self-discharge extends battery readiness

➤ U.L. recognized, 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

SigmasTek SP12-7.5HR Replacement Battery Set for Para Systems Minuteman MM300SS/1

Ensure uninterrupted backup power for your Para Systems Minuteman MM300SS/1 with this compatible replacement UPS battery set. The two SigmasTek SP12-7.5HR batteries are designed to deliver the reliable 12 Volt, 7.5 AH performance needed by the MM300SS/1 during power disturbances. This high-performance UPS battery set balances safety, durability, and dependable output for mission-critical protection.

Key Specifications

  • Configuration: Set of 2 batteries
  • Model: SigmasTek SP12-7.5HR
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • Terminal Type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility Note: Use all existing cables and hardware from original configuration to connect new batteries
  • Brand: SigmasTek

Benefits

This replacement UPS battery set is built to be a long-lasting battery option for the Para Systems Minuteman MM300SS/1. Thanks to the high rate discharge design, the MM300SS/1 receives the high-current support necessary for brief outages or heavy transient loads. Valve regulated, spill proof construction improves safety and reduces maintenance overhead, and low self-discharge helps the batteries remain charged during storage periods.

As a high-performance UPS battery, this SigmasTek set is suitable for uninterruptible power supply units, emergency power configurations, and battery-powered tools. High vibration resistance increases reliability in environments where mechanical stress is present. Each battery is brand new, factory fresh, and tested by technical staff to ensure it meets or exceeds OEM performance standards, providing consistent protection and a dependable service life.

Installing this replacement UPS battery set helps maintain continuous operation of your MM300SS/1, avoiding costly downtime and data loss. Reuse your existing cables and hardware for a smooth, quick installation and restore backup capacity fast.

Ready to replace the batteries in your Para Systems Minuteman MM300SS/1? Purchase the SigmasTek SP12-7.5HR replacement UPS battery set today for reliable, long-lasting backup and prompt shipping.


Payment & Security

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