FirstPower LFP1240 Compatible Replacement Battery 29.14 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.
FirstPower LFP1240 Compatible 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 | 40 Ah
Terminal Type
Nut & Bolt
FirstPower LFP1240 Replacement Battery — Compatible with FirstPower LFP1240
The replacement FirstPower LFP1240 rechargeable Sealed Lead Acid (SLA) battery is built to meet or exceed OEM specifications for the FirstPower LFP1240 model. Delivering dependable performance, this battery is an excellent choice when you need a replacement battery that provides reliable runtime, consistent power output, and long-term value. Perfect for both professional and home use, this battery offers the durability and reliability expected from a high-performance battery.
Key Specifications
- Compatible Model: FirstPower LFP1240
- Replacement Brand: SigmasTek
- Battery Type: Rechargeable Sealed Lead Acid (SLA)
- Chemistry / Technology: Absorbent Glass Mat (AGM) Technology
- Voltage: 12 Volts
- Capacity: 40 Ah
- Terminal Type: Nut & Bolt
- Design: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year
Benefits
- Long-lasting battery performance — AGM technology and robust construction provide extended service life and reliable charge/discharge cycles for continuous use.
- High-performance battery characteristics — delivers steady voltage and dependable current for critical applications where stable power matters.
- Maintenance-free convenience — spill-proof design and sealed construction eliminate the need for ongoing maintenance, ideal for enclosed and sensitive equipment.
- Versatile uses — suited for UPS systems, emergency lighting, security and alarm systems, medical devices, mobility aids, and portable power tools.
- Safe and certified — U.L. recognized and CE certified to meet safety and quality standards, plus factory fresh condition ensures dependable first-use performance.
- Secure connections — nut & bolt terminal style provides firm mechanical and electrical attachment for long-term installations.
Ready to replace your worn battery? This FirstPower LFP1240 replacement battery is a cost-effective, high-performance choice for restoring reliable power. Click to purchase now and ensure uninterrupted operation of your critical systems.
Technical Specifications
Product Highlights
- Brand Replacement : FirstPower LFP1240 Battery
- Manufacturer: SigmasTek
- Product Type: SLA 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.




