OPTI-UPS PS500 / 500PS UPS High Performance Replacement Battery Set
⚠️ 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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Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
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Battery Care Guide
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
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
⚠️ 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
SigmasTek SP12-5.5HR Replacement Battery Set — Compatible with OPTI-UPS PS500 / 500PS
Upgrade your OPTI-UPS PS500 / 500PS with this reliable, high-performance replacement UPS battery set. Designed to deliver dependable backup power, these two brand-new SigmasTek SP12-5.5HR batteries provide the performance and reliability required for critical systems. Whether you’re restoring a UPS after end-of-life batteries or improving emergency readiness, this replacement UPS battery set offers consistent discharge characteristics and factory-fresh components to keep your OPTI-UPS PS500 / 500PS operating at peak capacity.
Key Specifications
- Brand: SigmasTek
- Model: SP12-5.5HR
- Voltage: 12 Volts
- Capacity: 5.5 Ah
- Quantity: 2 batteries per set
- Terminal type: F2
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof Construction
- 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: OPTI-UPS PS500 / 500PS UPS units
Benefits
This high-performance UPS battery set is engineered for demanding, short-duration, high-rate discharge scenarios — perfect when the OPTI-UPS PS500 / 500PS must deliver greater power for brief intervals. As a high-performance UPS battery with valve-regulated, spill-proof construction, it resists vibration and minimizes self-discharge for more reliable standby life. These qualities make it an excellent long-lasting battery choice for both home and professional environments.
Durability and safety are emphasized through U.L. recognition and CE certification, and the factory-fresh condition ensures immediate readiness. Because these are replacement batteries specifically matched to the OPTI-UPS PS500 / 500PS, they meet or exceed OEM expectations for replacement UPS battery performance. Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools where dependable short-term power is required.
Technically minded users will appreciate that the set includes two identical SigmasTek SP12-5.5HR batteries tested to deliver consistent output, and should be installed using the existing cables and hardware from your original configuration to ensure safe and correct connections.
Ready to restore reliable backup power to your OPTI-UPS PS500 / 500PS? Order this long-lasting battery replacement today to get fast shipping and a 1 Year Warranty — buy now to secure your high-performance UPS battery set.
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Payment & Security
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