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SigmasTek  |  SKU: BW-1596

Best Power FERRUPS FES 1.15KVA High Performance Replacement Battery Set

Sale price $183.99 USD Regular price $262.04
Shipping calculated at checkout.

➤ Contains 2 replacement 12V 35AH UPS batteries with NB terminal

➤ Utilizes AGM sealed Absorption Glass Mat technology for reliable UPS backup

➤ UL certified and compatible with Best Power FERRUPS FES 1.15KVA UPS units

➤ Installs easily using existing hardware and cables

➤ 1-year warranty included for dependable use


📦🚀 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 | 35 AH

Terminal Type

Nut & Bolt

Replacement Batteries for Best Power FERRUPS FES 1.15KVA

Keep your Best Power FERRUPS FES 1.15KVA running at peak reliability with this compatible, high-quality replacement UPS battery set. Designed to deliver dependable backup power, consistent performance and proven durability, this two-battery pack is engineered to meet or exceed the original manufacturer specifications. Each replacement UPS battery features Absorption Glass Mat (AGM) sealed battery technology and UL certification, making it an ideal choice when you need a high-performance UPS battery that restores runtime and protects sensitive equipment during outages.

Key Specifications

  • Package contains: 2 batteries
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorption Glass Mat)
  • Guaranteed compatibility with original battery set
  • Warranty: 1-year Warranty
  • Volts: 12 V
  • Amp Hours: 35 AH
  • Weight: 49.4Lbs
  • Length: 7.72 In
  • Width: 5.14 In
  • Height: 6.14 In
  • Terminal: NB (Nut & Bolt)
  • Brand/Source: SigmasTek (sourced by ReplaceUPSBattery.com)
  • Certification: UL (Underwriters Laboratories) certified
  • Shipping methods: UPS Ground and USPS; we ship in 1 business day for all in-stock items

Benefits

This replacement UPS battery set is built for longevity and steady performance. AGM sealed construction minimizes maintenance and provides excellent resistance to vibration and leakage. As a long-lasting battery solution, it helps extend the service life of your Best Power FERRUPS FES 1.15KVA and reduces downtime risk during power interruptions. The SLA chemistry delivers reliable discharge and recharge cycles, while UL certification confirms adherence to industry safety standards.

Why choose this high-performance UPS battery?

  • Durability: AGM design and quality manufacturing mean a robust, maintenance-free replacement.
  • Long life: Engineered to meet or exceed original specs for consistent runtime and cycle life.
  • High performance: Stable delivery of power for critical loads and sensitive electronics.
  • Convenient fit: Sold as a matched pair to replace the original battery set — install in the same configuration and reuse existing cables and hardware.

Typical applications include UPS systems like the Best Power FERRUPS FES 1.15KVA, emergency power systems, home and small business backup, network closets, security systems, and power tools where sealed lead-acid batteries are used.

If you need assistance confirming fit or installation guidance for the Best Power FERRUPS FES 1.15KVA replacement UPS battery set, our customer service team is available via email, chat or toll-free at (800) 657-1303. Order now to restore reliable backup power with a trusted, long-lasting battery solution.


Payment & Security

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