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SigmasTek  |  SKU: BW-2779

APC Dell Smart-UPS 3000 Rack Mount 3U (DL3000RM3U) UPS High Performance Replacement Battery Set

Sale price $131.99 USD Regular price $193.14
Shipping calculated at checkout.

➤ 8 SigmasTek SP12-7.5HR batteries (12V 7.5 AH) for APC Dell DL3000RM3U UPS unit

➤ High rate discharge design for UPS power demands

➤ Valve regulated, spill-proof, and vibration resistant

➤ Low self-discharge extends shelf life and reliability

➤ Factory fresh with 1 year warranty and fast shipping


📦🚀 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 APC Dell DL3000RM3U - SigmasTek SP12-7.5HR (8 Pack)

Specifically engineered for the APC Dell DL3000RM3U UPS, this replacement battery set provides the compatibility, performance, and reliability your Dell-branded UPS requires. The kit contains eight SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH), offering a factory-fresh, tested replacement that restores runtime and power protection. Ideal as a direct replacement UPS battery, this pack helps maintain uptime for critical infrastructure.

Key Specifications

  • Quantity: 8 batteries included
  • Battery Model: SigmasTek SP12-7.5HR
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • 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
  • Compatibility: APC Dell DL3000RM3U
  • Installation Note: Use all existing cables and hardware from original configuration to connect new batteries

Benefits

This replacement battery set is designed for longevity and dependable service. The high rate discharge design supports scenarios where the APC Dell DL3000RM3U needs increased power output for short periods, ensuring stable operation during critical events. The valve regulated, spill-proof build improves safety and reduces maintenance needs, while low self-discharge helps retain capacity during idle periods—resulting in a long-lasting battery experience.

Each pack is U.L. recognized and CE certified, reflecting adherence to global safety standards. Our technical team tests every battery to ensure it meets or exceeds OEM specifications, delivering a high-performance UPS battery solution you can trust. Common uses include Uninterruptible Power Supply (UPS) systems, emergency power supplies, and battery-powered tools that require reliable backup power.

For data centers, server rooms, and network closets using the APC Dell DL3000RM3U, this replacement kit restores critical runtime and peace of mind. If installation assistance or compatibility advice is needed, expert customer service is ready to help.

Don't wait until runtime is compromised—buy this replacement UPS battery set for the APC Dell DL3000RM3U now to secure a long-lasting battery backed by a one-year warranty and fast shipping for in-stock items.


Payment & Security

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