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SigmasTek  |  SKU: BW-4770

Best Technologies FERRUPS MD 2KVA UPS High Performance Replacement Battery Set

Sale price $331.28 USD Regular price $418.40
Shipping calculated at checkout.

➤ Set of 4 spill proof, valve regulated batteries (12V 35AH)

➤ Low self-discharge minimizes maintenance needs

➤ High vibration resistance for dependable operation

➤ Designed for use in UPS and battery powered tools

➤ Brand new with 1 year warranty included


📦🚀 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 Battery Set for Best Technologies FERRUPS MD 2KVA (SigmasTek SP12-35 NB)

Replace aging batteries in your Best Technologies FERRUPS MD 2KVA with this premium replacement UPS battery set, engineered for dependable performance and compatibility. This kit restores the reserve runtime your UPS needs and offers the robust burst output required for short-duration, high-rate discharge events. It’s an ideal choice for protecting servers, networking gear, and essential infrastructure.

Key Specifications

  • Compatible UPS Model: Best Technologies FERRUPS MD 2KVA
  • Included Batteries: 4 x SigmasTek SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH (amp-hours)
  • Terminal Type: Nut & Bolt (NB)
  • 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
  • Brand: SigmasTek
  • Installation Note: Use all existing cables and hardware from your original configuration to connect the new batteries

Benefits

This replacement UPS battery kit is crafted to offer long-term durability and reliable cycle performance, giving you a long-lasting battery option for the FERRUPS MD 2KVA. The high rate discharge capability ensures dependable power during critical events, while the spill-proof, valve-regulated design enhances safety and reduces maintenance concerns. Low self-discharge preserves stored charge before installation and during service intervals, and the rugged build tolerates vibration common in industrial settings.

Typical uses include Uninterruptible Power Supply (UPS) systems like the Best Technologies FERRUPS MD 2KVA, emergency backup solutions, and battery-powered tools that require dependable energy delivery. Certified to U.L. and CE standards, these factory-fresh SigmasTek batteries are individually tested to meet or exceed OEM specifications. The nut & bolt terminals allow straightforward replacement using your original cables and hardware, minimizing downtime and simplifying service procedures.

Invest in this high-performance UPS battery set today to restore reliable backup power to your FERRUPS MD 2KVA. Order now for prompt shipping and warranty-backed protection, and keep your critical systems safeguarded against unexpected outages.



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