Simplex Alarm 20819275 High Performance Replacement Battery 12.66 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.
Simplex Alarm 20819275 High Performance Replacement Battery 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 | 18 Ah
Terminal Type
Nut & Bolt
Replacement Simplex Alarm 20819275 Emergency Lighting Battery — Compatible with Simplex Alarm 20819275
Get dependable backup power with this replacement Simplex Alarm 20819275 battery, engineered to meet or exceed OEM SLA specifications for reliable emergency performance. This replacement battery delivers consistent charging characteristics, safe operation, and long-term reliability so your Simplex Alarm 20819275 system remains fully operational when it matters most.
Key Specifications
- Model Compatibility: Simplex Alarm 20819275
- Voltage: 12 Volts
- Capacity: 18 Ah
- Terminal Style: Nut & Bolt
- Brand: SigmasTek
- Battery Type / Technology: Absorbent Glass Mat (AGM) Technology
- Design: Maintenance-Free
- Construction: Spill Proof
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year
Benefits
This replacement battery offers long-lasting battery life through AGM technology, known for improved cycle life, lower self-discharge, and superior charge acceptance compared to conventional lead-acid batteries. The sealed, maintenance-free design eliminates routine servicing and the risk of electrolyte leakage, delivering safe, reliable operation for indoor emergency systems. The Nut & Bolt terminals ensure secure physical connections for stable current delivery.
As a high-performance battery choice, it is well suited for emergency lighting, security alarms, fire alarm panels, medical equipment, consumer electronics, and home & garden applications. It is also appropriate for UPS systems and other emergency power scenarios that demand immediate, sustained delivery of stored energy. U.L. Recognition and CE certification provide additional assurance for compliance and safety.
Whether you are a building manager, electrician, or homeowner, this Simplex Alarm 20819275 replacement battery provides a cost-effective, reliable solution to maintain critical safety systems. The factory-fresh condition and 1 year warranty help protect your investment and ensure predictable operation.
Purchase your replacement Simplex Alarm 20819275 battery today to secure a dependable, long-lasting battery for your emergency systems. Order now for prompt shipping and added peace of mind.
Technical Specifications
Product Highlights
- Brand Replacement : Simplex Alarm 20819275
- Manufacturer: SigmasTek
- Product Type: Security Alarm
- 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.




