Simplex Alarm 4002 High Performance Replacement Battery 5.25 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 4002 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 | 7.5 Ah
Terminal Type
F2
Replacement Simplex Alarm 4002 Battery - Compatible with 4002
Restore reliable emergency lighting and alarm backup with this replacement battery for the Simplex Alarm 4002. Designed to meet or exceed OEM specifications, this 4002 replacement battery offers dependable compatibility, steady output, and the durability you need to maintain critical safety systems. Whether servicing a facility or performing routine preventative maintenance, this battery delivers the performance required for uninterrupted operation.
Key Specifications
- Absorbent Glass Mat (AGM) Technology
- Maintenance-Free Design with Spill Proof Construction
- U.L. Recognized and CE Certified
- Brand New, Factory Fresh
- 1 Year Warranty
- 12 Volts
- 7.5 Ah
- F2
- SigmasTek
Benefits
This Simplex Alarm 4002 replacement battery uses AGM construction to deliver a robust, maintenance-free power source that resists vibration and minimizes internal resistance for consistent performance. As a high-performance battery, it provides reliable current delivery during emergency events and routine testing. The sealed, spill-proof design reduces maintenance overhead and makes handling safer for technicians and installers.
Expect a long-lasting battery life that ensures your emergency lighting and alarm systems remain operational when called upon. The included 1 year warranty and the brand-new, factory-fresh condition make this a trustworthy pick for facilities management. Typical applications include emergency lighting modules, alarm control panels, UPS backup for critical electronics, exit signage, and various portable devices and power tools that require compact sealed lead-acid batteries.
Installation is straightforward with the F2 terminal format and standard 12 Volt, 7.5 Ah ratings that align with Simplex design expectations. The product’s U.L. recognition and CE certification help ensure compliance with safety regulations, and the SigmasTek branding signals consistent manufacturing quality.
Don’t wait until battery performance degrades — replace your Simplex Alarm 4002 battery now with this high-performance, long-lasting replacement battery and secure dependable emergency power. Click to purchase and restore full system reliability today.
Technical Specifications
Product Highlights
- Brand Replacement : Simplex Alarm 4002
- 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.




