Mighty Max BatteryRated 4.9 out of 5 from 8 reviews

Mighty Max Battery ML5-12 - 12 Volt 5 Amp Hour Sealed Lead Acid Rechargeable Battery For Chamberlain 41A6357-1 Garage Door Opener

Why you'll like it

  • Reliable Backup Power — High discharge rate and deep discharge recovery ensure your garage door opener works during power outages.
  • Maintenance Free Design — AGM technology provides a spill proof and leak free experience with no need to add water or perform regular upkeep.
  • Versatile Mounting — Tough construction allows for installation in any orientation while providing superior resistance to vibration and impact.
  • Wide Compatibility — Specifically designed to replace Chamberlain 41A6357-1 and Liftmaster 485LM models for seamless equipment integration.
  • All Weather Performance — Engineered to maintain high performance and long service life in both extreme high and low temperature conditions.

Product details

Description

The Mighty Max ML5-12 is a professional-grade 12 Volt 5 Amp Hour (5AH) Sealed Lead Acid (SLA) rechargeable battery designed to provide reliable standby power. Engineered with Absorbent Glass Mat (AGM) technology, this battery offers a spill-proof and maintenance-free experience, making it an ideal choice for enclosed indoor environments.

It features a heavy-duty, calcium-alloy grid that ensures exceptional performance and a long service life in both cyclic and float applications. Whether you are looking to replace a depleted unit in your Chamberlain 41A6357-1 garage door opener or need a dependable energy source for security systems, emergency lighting, or uninterruptible power supplies (UPS), this battery delivers consistent high discharge rates and deep discharge recovery.

Its rugged construction allows it to be mounted in any position while resisting shocks and vibrations, ensuring durability across a wide range of operating temperatures.

How to use

  1. Ensure the device is powered off before installation.
  2. Connect the F1 terminals to the corresponding positive and negative wire harness of your garage door opener or UPS system.
  3. Charge the battery fully before its first use to ensure maximum capacity.
  4. Regularly check terminal connections for tightness and cleanliness.

Ingredients

Lead, Lead Dioxide, Sulfuric Acid Electrolyte, Absorbent Glass Mat Separator, ABS Plastic Case.

As printed by the brand. Check the pack label if you have an allergy.

Specifications

BrandMighty Max Battery
UPC810185372638
Ships fromUSA (sourced directly), checked in Navi Mumbai
Sold byDropy.in

Ratings & reviews

From our customers

4.98 reviews
Used this product?Your review helps other shoppers choose.
Write a reviewMighty Max Battery ML5-12 - 12 Volt 5 Amp Hour Sealed Lead Acid Rechargeable Battery For Chamberlain 41A6357-1 Garage Door Opener
Filter reviews8 reviews

Top reviews first: highest rated, with photos first

  • Serenity-Networks B.
    5 ★

    Suits perfectly, utilize duct tape!

    This battery is exactly the same size, etc., as the one that came with my garage door opener. It was super easy to put in and now that I've had it in use for a month -seamless performance.The hardest part about installing it was actually getting the old battery out since there is nothing to grip and it's a tight space. After experimenting trying all kinds of skinny tongs and skinny stuff from the garage to try and wiggle it out. I hit a pun a little stroke of MacGyver genius - took a long piece of duct tape and used a table knife to stick it to the top and bottom of the battery then it pulled out very easily. So my new battery already has a piece of tape stuck on it so next time it won't be so hard to change. 😃

  • Bill P.
    5 ★

    Wonderful value and performs the same as the brand one.

    Battery is just as described. It arrived in two days and the garage door is working perfectly.

  • Bradford
    5 ★

    Superb alternative

    Worked perfectly… super simple to install and excellent alternative to the name brand product that was expensive

  • Cindi C.
    5 ★

    Excellent replacement battery

    Easy buy, perfect fit

Mighty Max Battery ML5-12 - 12 Volt 5 Amp Hour Sealed Lead Acid Rechargeable Battery For Chamberlain 41A6357-1 Garage Door Opener8 customer reviews
4.9

FAQs

What battery is used for a Chamberlain garage door opener?

The Chamberlain garage door opener typically uses a 12V 5AH Sealed Lead Acid (SLA) battery, such as the Mighty Max ML5-12, which serves as a standby power source during electrical failures.

How long does a Chamberlain garage door battery last?

Most garage door opener batteries have a service life of approximately two to three years depending on usage frequency and environmental temperature, after which they should be replaced to ensure backup reliability.

What kind of battery does a garage door opener take?

It takes a 12 Volt 5 Amp Hour rechargeable battery with an F1 terminal. These are usually Lead Acid batteries utilizing AGM technology for a maintenance-free and spill-proof design.

Are these Mighty Max batteries authentic USA imports?

Yes, all Mighty Max products on Dropy India are authentic and sourced directly from the USA. We ensure that Indian customers receive genuine, high-quality imported personal and home utility products.

Can this battery be used for UPS or security systems?

Absolutely. While highly popular for garage door openers, the ML5-12 is a universal 12V 5AH battery suitable for fire alarms, security systems, emergency lighting, and small UPS units.

How long will delivery take?

Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.

Is cash on delivery available?

Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.

Are your products genuine?

Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.

What if my order arrives damaged or wrong?

Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.

Is delivery free?

Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.