Liftmaster 485LM Compatible Replacement Battery for 3850 Opener 3.5 lb
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Liftmaster 485LM Compatible Replacement Battery for 3850 Opener 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 | 5 AH
Terminal Type
F1
Liftmaster 485LM Replacement Battery — Compatible with Liftmaster 3850 Garage Door Opener
Keep your garage door opener functioning through power interruptions with this Liftmaster 485LM replacement battery, precisely engineered for compatibility with the Liftmaster 3850 Garage Door Opener Backup. This 12V, 5AH high-performance battery offers the reliable discharge characteristics and wide operating temperature range required for dependable backup operation. Designed to meet or exceed the original specifications, this long-lasting battery ensures your opener continues to work when you need it most.
Key Specifications
- Brand/Model: Liftmaster 485LM replacement
- Compatible with: Liftmaster 3850 Garage Door Opener Backup
- Volts: 12 V
- Amp Hours: 5 AH
- Terminal: F1
- Technology: Valve-Regulated Lead Acid (VRLA) Sealed Battery
- UL Certification: Underwriters Laboratories (UL) certified
- Package contains: 1 battery
- Warranty: 1-year Warranty
- Weight: 3.5Lbs
- Length: 3.54 In
- Width: 2.76 In
- Height: 3.98 In
- Shipping: ETD: 3 Business Days; Shipping Methods – UPS Ground and USPS; We ship in 1 business day for all in-stock items
- Installation note: Install new battery in same original configuration and reuse existing cables
Benefits
This replacement battery delivers consistent power for your garage door opener’s backup system. Its high-discharge design supports the quick energy bursts required to drive motors and actuators, while the wide temperature tolerance ensures reliable operation across seasons. As a VRLA sealed battery, it’s maintenance-free and safe to install in confined enclosures like garage opener compartments.
Expect a long-lasting battery life with robust internal construction and dependable recharge behavior, making it perfect for emergency power, UPS-like backup tasks, and intermittent high-load demands. The F1 terminal provides a secure, OEM-compatible connection for a seamless swap. Whether you’re restoring the opener after battery failure or stocking a replacement to avoid downtime, this high-performance battery keeps your system ready.
Don’t wait until a power outage leaves you stranded—order this Liftmaster 485LM replacement battery for your Liftmaster 3850 today and secure dependable, long-lasting battery backup for your garage door system.
Technical Specifications
Product Highlights
- Brand Replacement : Liftmaster 485LM Battery
- Manufacturer: SigmasTek
- Product Type: SLA Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
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