Dell 3750W K804N UPS High Performance Replacement Battery Set 95.93 lb
— Ready to ship immediately
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
Dell 3750W K804N UPS High Performance Replacement Battery Set is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
Battery Care Tips
Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
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.
Volts & Amps
12 Volts | 9 AH
Terminal Type
F2
Replacement Battery Set for Dell 3750W (K804N)
Keep your Dell 3750W (K804N) UPS running at peak reliability with this complete replacement battery set. Designed for compatibility and dependable delivery, this replacement UPS battery pack is ideal for restoring runtime and protecting critical infrastructure. Whether for data centers, medical equipment, or telecommunications, these batteries offer the consistent performance required for uninterrupted operation.
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 3750W (K804N) UPS unit
Benefits
These SigmasTek SP12-9HR batteries are built for longevity and performance, offering a long-lasting battery option when reliability is critical. The high rate discharge characteristic makes this pack a strong choice for UPS systems that must deliver larger currents for short periods, ensuring safe shutdown of sensitive electronics and preserving data integrity. The valve regulated, spill-proof construction provides safe, maintenance-free operation suitable for enclosed equipment racks and telecom closets.
A high-performance UPS battery should withstand real-world conditions; these batteries feature high vibration resistance and low self-discharge to maintain readiness even after prolonged standby periods. U.L. recognition and CE certification provide added assurance of quality and safety. Common applications include Uninterruptible Power Supply units, emergency power supply systems, and battery-powered tools requiring quick bursts of energy. Our technical staff tests every set to meet or exceed OEM expectations, so your Dell 3750W (K804N) can be restored with confidence.
Please note: you must reuse all existing cables and hardware from your original configuration for proper installation. Choosing this replacement UPS battery set gives you a reliable, high-performance option to extend the life of your Dell UPS with fast shipping and a one-year warranty.
Buy now to secure a dependable replacement for your Dell 3750W (K804N) and protect your systems with a trusted, long-lasting battery solution.
Technical Specifications
Product Highlights
- Brand Replacement : Dell 3750W
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
