Door King 6003 UPS Compatible Replacement Battery 12.66 lb
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Door King 6003 UPS Compatible Replacement Battery is backordered and will ship as soon as it is back in stock.
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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 | 18 Ah
Terminal Type
Nut & Bolt
SigmasTek SP12-18 NB Replacement for Door King 6003 UPS
Ensure continuous operation of your Door King 6003 Uninterruptible Power Supply with the SigmasTek SP12-18 NB replacement UPS battery. This 12 Volts 18 AH unit provides the dependable, long-lasting battery performance required for access control and gate systems. Engineered for rapid discharge and reliable standby capacity, this high-performance UPS battery is an ideal replacement to restore full backup capability to your Door King equipment.
Key Specifications
- Brand: SigmasTek
- Model: SP12-18 NB
- Compatible UPS Model: Door King 6003
- Voltage: 12 Volts
- Capacity: 18 AH (Amp-hours)
- Terminal Type: Nut & Bolt
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof
- Features: Low Self-discharge; High Vibration Resistance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
Benefits
This replacement UPS battery is built for extended service life and dependable output. The valve-regulated spill proof design reduces maintenance and improves installation safety, while low self-discharge preserves capacity when the unit is stored or used intermittently. High rate discharge capability supplies the necessary current for short-duration heavy loads, and high vibration resistance enhances reliability in environments subject to movement or mechanical stress.
Ideal for uninterruptible power supply systems, emergency power backup, and battery-powered tools, the SigmasTek SP12-18 NB offers a trusted, long-lasting battery solution for the Door King 6003. Each battery is brand new and factory tested to ensure it meets or exceeds OEM expectations, delivering reliable backup power when it counts the most.
For ordering help or technical questions, reach our customer service at . We typically ship in-stock replacement UPS batteries within 24 hours so you can minimize downtime and restore protection quickly.
Buy your replacement UPS battery for the Door King 6003 now and get dependable backup power, fast shipping, and a one-year warranty. Order today to secure a high-performance UPS battery that keeps your system protected.
Technical Specifications
Product Highlights
- Brand Replacement : Door King
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
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