Tripp Lite INTERNET350U UPS 12V 3.5AH High Performance Replacement Battery
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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 | 3.5 Ah
Terminal Type
F2
Replacement SigmasTek 12V 3.5AH for Tripp Lite INTERNET350U
This replacement UPS battery is designed specifically for the Tripp Lite INTERNET350U Uninterruptible Power Supply (UPS). The SigmasTek 12V 3.5AH unit meets or exceeds OEM SLA specifications and provides a compact, reliable power source to restore runtime and keep small systems protected. Ideal for network devices and small UPS models, this replacement UPS battery delivers dependable performance in a maintenance-free, spill-proof package.
Key Specifications
- Compatible Model: Tripp Lite INTERNET350U
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 3.5 AH
- Terminal Type: F2
- Technology: Absorbent Glass Mat (AGM) Technology
- Design: High Rate Discharge Design
- Construction: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
Benefits
- Durability: AGM construction and sealed, spill-proof design provide rugged protection in small UPS enclosures and networking closets, ensuring sustained performance under normal operating conditions.
- Long Life: Built to be a long-lasting battery solution for compact UPS models, this unit helps reduce replacement frequency and ensures continued backup readiness.
- High Performance: Despite its compact size, the high rate discharge design supports necessary surge demands for short periods, making this a reliable high-performance UPS battery for small electronics and communication devices.
- Maintenance-Free: Sealed AGM technology eliminates the need for maintenance, and F2 terminals provide easy, secure connections for quick replacement in the Tripp Lite INTERNET350U.
- Typical Applications: Perfect for UPS units like the Tripp Lite INTERNET350U, emergency power supplies for small devices, and battery powered tools or accessories that require compact backup power.
- Safety & Quality: U.L. recognition and CE certification ensure compliance with safety standards for peace of mind in both home and professional environments.
Replace the battery in your Tripp Lite INTERNET350U with this factory-fresh SigmasTek unit today. Purchase now to secure a compact, reliable, and long-lasting battery backed by a 1 year warranty — keep your critical devices protected and minimize downtime with a trusted replacement UPS battery.
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