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SigmasTek  |  SKU: BW-2544

Dell 4200W J730N UPS Compatible Replacement Battery Set

Sale price $395.99 USD Regular price $579.61
Shipping calculated at checkout.

➤ Includes 16 SigmasTek SP12-9HR batteries (12V 9AH) for Dell 4200W J730N UPS

➤ Engineered for high rate discharge to handle UPS power surges

➤ Valve regulated, spill-proof construction for safety and maintenance-free use

➤ Low self-discharge and vibration resistant for extended battery life

➤ Factory fresh with 1 year warranty and quality 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 | 9 AH

Terminal Type

F2

Replacement Battery Set for Dell 4200W (J730N)

Ensure continuous protection for your Dell 4200W (J730N) Uninterruptible Power Supply with this high-quality replacement battery set. Designed for reliable compatibility and optimal performance, this replacement UPS battery pack restores backup runtime and provides the peace of mind needed for critical operations. Ideal for IT infrastructure, point-of-sale systems, and emergency power installations, these batteries offer dependable energy when it matters most.

Key Specifications

  • Quantity: 16 batteries per set
  • Battery Model: SigmasTek SP12-9HR
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 9 AH (Amp-hours)
  • Terminal: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible With: Dell 4200W (J730N) UPS unit

Benefits

This replacement battery pack provides a long-lasting battery solution that is both maintenance-free and highly reliable. The high-rate discharge capability means the pack can supply elevated currents for short durations, making it an excellent high-performance UPS battery for demanding scenarios. Valve regulated and spill-proof construction reduces installation constraints and lowers the risk of leakage, while low self-discharge ensures your Dell 4200W (J730N) remains ready for action after extended standby.

Rugged design features such as high vibration resistance increase reliability in dynamic environments. Certified by U.L. and CE, these batteries meet established safety and quality standards. They are well suited to Uninterruptible Power Supply units, emergency power systems, and battery-powered tools where reliable burst power is needed. All battery sets are tested by our technical staff to ensure they meet or exceed OEM performance expectations.

Remember to reuse your original cables and hardware to connect the new batteries correctly. Selecting this replacement UPS battery set gives you a dependable, high-performance upgrade for your Dell 4200W (J730N), backed by a one-year warranty and fast shipping.

Purchase this trusted replacement UPS battery set now and restore reliable backup power to your Dell 4200W (J730N) today.


Payment & Security

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