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SigmasTek  |  SKU: BW-4650

Upsonic PC MIGHT 25 UPS High Performance Replacement Battery

Sale price $11.65 USD Regular price $16.90
Shipping calculated at checkout.

➤ Pack of 10 brand new SigmasTek SP12-5.5HR batteries (12V 5.5 AH)

➤ High rate discharge design ideal for UPS and emergency power

➤ Valve regulated, spill-proof construction for safe operation

➤ Low self-discharge and high vibration resistance for durability

➤ Certified safe and reliable with 1-year manufacturer 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 | 5.5 Ah

Terminal Type

F2

Replacement Battery for Upsonic PC MIGHT 25 UPS - SigmasTek SP12-5.5HR (Single)

This single replacement UPS battery is specifically designed for the Upsonic PC MIGHT 25 Uninterruptible Power Supply, delivering reliable compatibility and restored backup capability. The SigmasTek SP12-5.5HR offers a compact, factory-fresh option for replacing worn cells and maintaining UPS performance. If you need a high-performance UPS battery that provides dependable, long-lasting battery life for emergency standby or backup equipment, this SigmasTek unit is an excellent single-battery replacement.

Key Specifications

  • Compatible UPS Model: Upsonic PC MIGHT 25
  • Quantity: 1 SigmasTek SP12-5.5HR battery
  • Voltage: 12 Volts
  • Capacity: 5.5 Ah
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Performance Features: Low Self-discharge; High Vibration Resistance; Superior Performance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Use all existing cables and hardware from your original configuration to connect the new UPS battery
  • Typical Applications: Uninterruptible Power Supply (UPS) Units; Emergency Power Supply; Battery Powered Tools

Benefits

As a replacement UPS battery, the SigmasTek SP12-5.5HR offers dependable operation and a long-lasting battery life for compact UPS units like the Upsonic PC MIGHT 25. The high rate discharge design delivers the necessary power for short bursts during transfer events, while valve-regulated, spill-proof construction enhances safety and reduces maintenance needs. Low self-discharge keeps the battery ready for use even after storage, ensuring reliable startup when it’s needed most.

The battery’s high vibration resistance makes it robust enough for installations that experience movement or vibration, and UL/CE recognition demonstrates adherence to accepted safety and manufacturing standards. Whether you are replacing a single failed battery in a multi-cell string or keeping a spare on hand for rapid swap-outs, this high-performance UPS battery provides consistent performance across emergency power and backup scenarios. It’s equally useful for small-scale UPS units and battery-powered tools that require instant energy delivery.

Technically tested and factory fresh, this SigmasTek cell is intended to meet or exceed OEM expectations while offering a cost-effective, long-lasting battery choice for maintaining the Upsonic PC MIGHT 25’s protection.

Restore reliable backup power to your Upsonic PC MIGHT 25—order this replacement UPS battery today. Fast shipping and a 1 year warranty make it simple to secure a dependable, long-lasting battery for your critical equipment.


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