Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-15863

FirstPower LFP1233D Long Life Replacement Battery 24.72 lb

13% off
New arrival
Sale price $122.99 USD Regular price $140.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced durability
Maintenance-free, spill-proof design for hassle-free use
U.L. Recognized and CE Certified for safety and quality assurance
Brand new and factory fresh for reliable performance
1-year warranty included for peace of mind
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

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.

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

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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

🔹 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: 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 | 35 AH

Terminal Type

Nut & Bolt

FirstPower LFP1233D Replacement Battery — Compatible with FirstPower LFP1233D

This replacement battery is engineered for seamless compatibility with the FirstPower LFP1233D model, delivering dependable performance and reliable power when you need it most. Built to meet or exceed OEM SLA specifications, the FirstPower LFP1233D replacement battery provides a high level of reliability for critical applications, offering a maintenance-free, spill-proof design and consistent output under load. If you’re searching for a high-performance battery and a long-lasting battery that fits your FirstPower LFP1233D device, this replacement battery is an excellent choice.

Key Specifications

  • Model: FirstPower LFP1233D (replacement battery)
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Brand: FirstPower / SigmasTek
  • Certifications: U.L. Recognized, CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Design: Maintenance-Free with Spill Proof Construction

Benefits

  • Durability: AGM construction resists vibration and shock, making this a robust, durable replacement battery for daily use and rugged environments.
  • Long Life: The sealed AGM design provides consistent, long service life when properly maintained in float or cyclic applications—perfect as a long-lasting battery solution.
  • High Performance: Reliable 12V/35AH output supports sustained loads and rapid discharge/recharge cycles, delivering the performance expected from a high-performance battery.
  • Maintenance-Free Convenience: The spill-proof, maintenance-free design eliminates the need to check water levels, making it easy to install and operate.
  • Safety & Compliance: U.L. recognition and CE certification ensure safe operation in certified systems and international applications.
  • Versatile Applications: Ideal for UPS systems, emergency power backup, alarm systems, medical equipment, mobility devices, portable tools, and other standby or deep-cycle uses.
  • Easy Installation: Nut & bolt terminals offer secure, low-resistance connections for permanent installs and periodic replacement tasks.

Ready to restore dependable power? Choose this FirstPower LFP1233D replacement battery for a high-performance battery that offers reliable, long-lasting battery life and full compatibility with your equipment. Click to purchase now and ensure uninterrupted power for your essential systems.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : FirstPower LFP1233D Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.