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SigmasTek  |  SKU: BW-2711

OPTI-UPS PS3000B High Performance UPS Replacement Battery Set

Sale price $131.99 USD Regular price $193.14
Shipping calculated at checkout.

➤ Set of 8 factory fresh SigmasTek SP12-7.5HR batteries (12V 7.5AH)

➤ High rate discharge supports short bursts of high power output

➤ Valve regulated, spill proof design for safe, maintenance-free operation

➤ Low self-discharge for extended shelf life and readiness

➤ Certified 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 | 7.5 Ah

Terminal Type

F2

Replacement Battery Set for OPTI-UPS PS3000B (8 x SigmasTek SP12-7.5HR)

Upgrade and restore your OPTI-UPS PS3000B with a reliable, high-performance replacement UPS battery set designed for consistent compatibility, dependable performance, and long-term reliability. This complete set contains eight factory-fresh SigmasTek SP12-7.5HR batteries engineered specifically for high rate discharge UPS applications where short bursts of higher power are required. If your OPTI-UPS PS3000B needs a refresh, these replacement batteries deliver the stability and output your system depends on, providing a long-lasting battery solution that meets or exceeds OEM expectations.

Key Specifications

  • Battery Model: SigmasTek SP12-7.5HR
  • Quantity: 8 batteries per set
  • Voltage: 12 Volts
  • Capacity: 7.5 AH (amp-hours)
  • Terminal Type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Requires use of existing cables and hardware from original configuration
  • Compatible UPS Model: OPTI-UPS PS3000B

Benefits

  • Durability and Reliability: Built with valve regulated, spill-proof construction and high vibration resistance to handle the demands of rack and standby UPS systems. These replacement UPS battery cells are U.L. recognized and CE certified for reliable operation.
  • Long Life and Low Maintenance: Low self-discharge chemistry helps these units retain capacity during storage and between maintenance cycles, making them a true long-lasting battery option for infrequently used backup systems.
  • High Performance When It Counts: The high rate discharge design supplies the surge and short-term power required by the OPTI-UPS PS3000B during brownouts, outages, and high-load events, providing consistent output for critical equipment.
  • OEM-Level Quality: Each SigmasTek cell is brand new and factory fresh; our technical staff tests every battery set to ensure performance that meets or exceeds OEM specifications for the OPTI-UPS PS3000B.
  • Typical Applications: Ideal for use in Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery powered tools where dependable temporary power is essential.
  • Easy Replacement: This kit contains the exact battery count and chemistry required; simply reuse your existing cables and hardware to complete installation and return your UPS to service quickly.
  • Peace of Mind: Backed by a 1 year warranty and professional testing to ensure you receive a high-performance UPS battery replacement that is ready for mission-critical use.

Don’t leave your OPTI-UPS PS3000B exposed to power risk — order this replacement UPS battery set today for a tested, high-performance UPS battery solution and get back to reliable backup power. Buy now to secure a long-lasting battery replacement with fast shipping and confident support.


Payment & Security

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