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SigmasTek  |  SKU: BW-4899

Best Power FERRUPS MD 350VA UPS Compatible Replacement Battery

Sale price $92.48 USD Regular price $134.10
Shipping calculated at checkout.

➤ Replacement battery meets or exceeds OEM standards for Best Power FERRUPS MD 350VA

➤ Utilizes AGM Technology for superior performance and lifespan

➤ Maintenance-free and spill-proof for safe operation

➤ U.L. Recognized and CE Certified for quality assurance

➤ 1 Year warranty with guaranteed model compatibility


📦🚀 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 Best Power FERRUPS MD 350VA Battery — Compatible with Best Power FERRUPS MD 350VA

Specifically manufactured as a replacement UPS battery for the Best Power FERRUPS MD 350VA, this unit offers dependable compatibility, robust performance, and maintenance-free operation. As a high-performance UPS battery designed to meet or exceed OEM SLA specifications, it ensures your UPS delivers the emergency runtime and protection you expect. Ideal for small UPS systems, critical electronics, and emergency setups, this long-lasting battery is ready to perform when needed.

Key Specifications

  • Compatibility: Best Power FERRUPS MD 350VA
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Applications listed: Emergency Power Supply; Battery Powered Tools
  • Additional product info: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal type: Nut & Bolt
  • Brand references: Best Power

Benefits

  • Durability: AGM and spill-proof design mean reliable, maintenance-free use in UPS and emergency power applications.
  • Long life: Designed for high rate discharge cycles to offer extended service life as a long-lasting battery replacement.
  • High performance: Matched to OEM SLA specifications so the Best Power FERRUPS MD 350VA regains expected runtime and stable power delivery.
  • Certified safety: U.L. Recognized and CE Certified for secure deployment in residential and commercial applications.
  • Versatile use: Suitable for UPS systems, emergency backup, and battery-powered tools where a dependable replacement UPS battery is needed.
  • Hassle-free installation: Nut & bolt terminals for firm, reliable electrical connections during replacement.
  • Value and assurance: Brand new, factory-fresh condition with a 1 year warranty ensures confidence and protection after purchase.

Get back to full protection with this high-performance, long-lasting replacement UPS battery for the Best Power FERRUPS MD 350VA. Buy now to ensure reliable backup power when you need it most.


Payment & Security

Payment methods

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