OPTI-UPS 350059 UPS Compatible Replacement Battery
⚠️ 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.
📸 Send Your Battery Photo / Unsure? Expert Help
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 | 7.5 Ah
Terminal Type
F2
SigmasTek 12 Volts 7.5 Ah F2 Replacement Battery — Compatible with OPTI-UPS 350059
Designed for full compatibility with the OPTI-UPS 350059, this SigmasTek replacement UPS battery offers dependable reserve power, consistent discharge performance, and maintenance-free operation. This high-performance UPS battery meets or exceeds OEM SLA standards, delivering reliable energy for critical systems and emergency backup scenarios. If you need a long-lasting battery that fits the OPTI-UPS 350059, this unit provides the capacity and build quality you expect.
Key Specifications
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 7.5 Ah
- Terminal Type: F2
- Technology: Absorbent Glass Mat (AGM)
- Design: High Rate Discharge Design
- Maintenance: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year
- Compatible UPS Model: OPTI-UPS 350059
- Typical Applications: Emergency Power Supply; Battery Powered Tools
Benefits
The AGM design ensures low internal resistance and dependable performance under load, making this replacement UPS battery an excellent solution for the OPTI-UPS 350059. Its spill-proof, maintenance-free construction reduces service requirements and ensures safe operation in enclosed spaces, racks, or home and office UPS systems. Certified to recognized safety standards (U.L. and CE), the SigmasTek unit delivers peace of mind for mission-critical installations.
As a high-performance UPS battery, it supports rapid discharge demands and maintains stable voltage to keep connected equipment operational during outages. This battery is well-suited for protecting networking devices, servers, POS terminals, and other sensitive electronics. It is also effective for emergency power supply needs and powering battery operated tools where reliable energy delivery is essential.
Each battery ships brand new and factory fresh with a 1 year warranty, ensuring you get a quality replacement UPS battery that is fully compatible with the OPTI-UPS 350059 and ready to deliver dependable backup power.
Restore reliable backup capability now—order this long-lasting, high-performance replacement UPS battery for your OPTI-UPS 350059 and protect your critical equipment.
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