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SigmasTek  |  SKU: BW-3303

Tripp Lite SU40K UPS Compatible Replacement Battery Set

Sale price $329.99 USD Regular price $482.85
Shipping calculated at checkout.

➤ Includes 20 SigmasTek SP12-7.5HR batteries, 12V 7.5AH each

➤ High discharge rate for UPS and emergency power

➤ Valve regulated, spill-proof for leak-free performance

➤ Low self-discharge ensures long shelf life

➤ Factory fresh with U.L. and CE certifications


📦🚀 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 Tripp Lite SU40K — SigmasTek SP12-7.5HR Compatible

Replace worn-out cells in your Tripp Lite SU40K with this premium replacement UPS battery set. This kit contains 20 SigmasTek SP12-7.5HR batteries, each 12 Volts and 7.5 Ah, designed to provide strong, reliable power for high rate discharge UPS scenarios. Whether protecting servers, telecom equipment, or emergency circuits, this high-performance UPS battery set offers consistent output, low self-discharge, and proven safety credentials to help keep critical systems online when it matters most. Note that you must reuse your original cables and hardware to connect the new batteries.

Key Specifications

  • Brand: SigmasTek
  • Battery Model: SP12-7.5HR
  • Voltage: 12 Volts
  • Capacity: 7.5 Ah
  • Quantity Included: 20 batteries
  • Terminal Type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge; High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility Note: For Tripp Lite SU40K UPS units — use all existing cables and hardware from original configuration

Benefits

Designed for durability and repeatable performance, this replacement UPS battery kit provides the long-lasting battery characteristics required by mission-critical applications. The high rate discharge construction ensures the pack can deliver higher power for short durations — ideal for handling brief but severe load demands. Valve regulated, spill-proof design simplifies installation and increases safety; the low self-discharge property preserves capacity during storage or infrequent use.

These batteries are suitable for Uninterruptible Power Supply units like the Tripp Lite SU40K, emergency power systems, and battery-powered tools that benefit from momentary high-current capability. Each cell is factory fresh and undergoes testing to verify it meets or exceeds OEM standards, providing you with a reliable, high-performance UPS battery replacement that minimizes downtime and extends service life.

Backed by U.L. and CE recognition and a 1 year warranty, this kit offers a dependable and cost-effective solution for maintaining or restoring UPS runtime.

Need to restore power protection for your Tripp Lite SU40K? Order this SigmasTek replacement UPS battery set today and secure dependable backup power with fast shipping.


Payment & Security

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