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M40-12 SLD G

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MK Battery M50-12 SLD M sealed AGM battery is used for lighter-duty mobility devices. The sealed Absorbed Glass Mat technology completely absorbs electrolytes for a spillproof design. It features a premium sealing valve that prevents capacity loss and controls pressure. The fortified posts, straps, and welds resist vibration damage and maximize current transfer.


  • 12 Volts and 50 AMP hours
  • Sold in Pairs
  • Total weight 67 lbs.
  • Measures 6.54″W x 7.83″L x 6.73″H each
  • Safe for travel on planes


  • Spillproof Design: The AGM batteries completely absorb electrolytes, ensuring a spillproof design for added safety and peace of mind.
  • Sealed AGM Technology: Utilizing advanced Sealed Absorbed Glass Mat technology, the batteries are valve-regulated for efficient recombination, maximizing performance and lifespan.
  • Ultra Premium Sealing Valve: Equipped with an ultra-premium sealing valve, they prevent capacity loss and effectively control pressure, ensuring optimal functionality in diverse conditions.
  • Rugged Construction: Featuring fortified posts, straps, and welds, they are engineered to resist vibration damage and optimize current transfer, ensuring durability and reliability in demanding environments.
  • High-Density Oxide: The batteries are built with high-density oxide materials, providing maximum power-per-point for exceptional “high cycling” service and longevity.
  • Low Self-Discharge Rate: With less than 2% per month self-discharge, these batteries experience minimal deterioration during transport and storage, maintaining readiness whenever needed.
  • Easy Transportation: Approved by FAA, IATA, DOT, and UPS, They are designed for easy travel and shipping, offering convenience and compliance with international regulations.
  • Maintenance-Free Operation: The batteries are completely maintenance-free, eliminating The need for regular upkeep and ensuring hassle-free performance over The long term.
  • Specialized Valve Design: Each battery undergoes rigorous in-house testing to ensure 100% reliability of the specialized valve design, enhancing overall safety and performance.
  • Forged Terminals and Bushings: With forged terminals and bushings, These batteries assure leakage, ensuring reliability and safety in operation.



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Width: 6.54″
Length: 7.83″
Height: 6.73″




Warranty Information

A battery will be replaced with a free equivalent if it fails due to defects in materials or workmanship within thirteen (13) months from the date of installation. Proof of the date of purchase/installation is required for all claims.

This warranty does not cover failures in service due to the following conditions:

1. Unauthorized modifications or alternations to the products including the addition of any substance other than water to wet batteries or electrolyte (1.260 specific gravity) to dry batteries.

2. Negligence, accident, abuse, misuse including improper jump starting, or improper, unsuitable, or abnormal storage of the products.

3. Improperly installed or applied batteries. Improperly charged (either under or over) batteries.

Opening of batteries that are designed and intended for use as sealed products.

4. Physical damage due to acts of nature or man that stress products beyond design limits or other undesirable influences.

5. Normal “wear and tear”.

MK Battery shall not be liable to the purchaser/distributor, or any other person, either directly or by way of indemnification, for consequential, incidental, special, or direct damages, whether the claim for any such damages is based on warranty, tort, contract, or otherwise.

12V 50AH Sealed Lead Acid (Pair) Batteries


By MK Battery

Model No. M50-12 SLD M

  • 12 Volts and 50 AMP hours
  • Sold in Pairs
  • Total weight 67 lbs.
  • Made in the USA
Product Information
• Voltage :
• Type :
Lead Acid (AGM)
• 20 Hr. Rate (AH) :
50 AH
• 5 Hr. Rate (AH) :
42.5 AH
"A Scooter 4 U" Difference Includes
13 Months Warranty
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