MK Battery

M50 12V 50AH AGM Battery ( Sold in pairs )

Mobility Batteries
(Model No. M50-12 SLD M)

Starting at: $599.00 USD

Key Features

    • Dual-Purpose Performance: Engineered for both cyclic (frequent discharge/recharge) and standby (float) applications.
    • Maintenance-Free & Spill-Proof: A valve-regulated (VRLA) design that is completely sealed, eliminating the need for watering and preventing acid leaks even if the case is damaged.
    • Travel Approved: Classified as non-spillable and approved by the FAA, IATA, DOT, and UPS for safe transport via airplane or public transit.
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MK Battery

Mobility Batteries
(Model No. M50-12 SLD M)

Starting at: $599.00 USD
$599.00
Shipping calculated at checkout.

Description
Specifications
Information

MK Battery M50-12 SLD M 12V 50Ah AGM Batteries, Pair

This listing supplies two MK Battery M50-12 SLD M batteries. Each is rated at 12 volts and 50 amp-hours and uses sealed AGM construction. MK describes the M50 for both cycling and standby service, making the exact model relevant when replacing batteries in mobility or backup-power equipment. The pair quantity does not by itself specify the connected system's voltage or amp-hour capacity; that depends on the device's wiring.

Match the Existing System

Check the equipment manufacturer's required battery model, chemistry and number of batteries. Compare each M50's case with the tray and confirm terminal type, orientation, cable reach and hold-down arrangement. Similar voltage or battery size does not prove that this AGM model is suitable for a device designed for a gel battery or a different capacity.

Charging, Storage and Handling

Use a charging profile approved for AGM batteries and for the specific equipment. MK lists the M50 as a sealed valve-regulated battery and describes low self-discharge in storage, but it still requires correct charging and handling. Follow the equipment manual for series or parallel wiring and polarity. The retailer identifies this model as non-spillable and lists transport approvals; check the current airline or carrier rules before passenger travel because acceptance requirements can vary.

Pair and Installation Service

The product is sold as two batteries when equipment specifies a pair. Do not infer system capacity by adding the label values without checking how the equipment connects them. Optional installation service is labor dispatch and battery installation only; it is non-refundable and may carry a distance-based charge. Confirm local service coverage before adding it.

Before Ordering

Verify the M50-12 SLD M model, per-unit 12V/50Ah rating, AGM chemistry, pair quantity, tray fit, terminal layout and charger compatibility. Use this model only where the equipment's specification calls for AGM batteries.

AGM Battery

  • Has a 70 minute reserve capacity.
  • Capacity at 5hr RATE 42.5AH
  • Capacity at 20hr RATE 50AH

Dimensions:

  • Weight: 31.32 lbs each
  • Length: 7.8'
  • Width: 6.54'
  • Height: 6.73'

GEL vs. AGM Sealed Batteries

AGM (absorbed glass mat) is a special design glass mat designed to wick the battery electrolyte between the battery plates. AGM batteries contain only enough liquid to keep the mat wet with the electrolyte and if the battery is broken no free liquid is available to leak out.

Gel Cell batteries contain a silica type gel that the battery electrolyte is suspended in, this thick paste like material allows electrons to flow between plates but will not leak from the battery if the case is broken.

More often than not an AGM Batteries are mistakenly identified as a Gel Cell Batteries. Both batteries have similar traits; such as being non spillable, deep cycle, may be mounted in any position, low self discharge, safe for use in limited ventilation areas, and may be transported via Air or Ground safely without special handling.

AGM Batteries outsell Gel Cell by at least a 100 to 1. AGM is preferred when a high burst of amps may be required. In most cases recharge can be accomplished by using a good quality standard battery charger or engine alternator. The life expectancy; measured as cycle life or years remains excellent in most AGM batteries if the batteries are not discharged more than 60% between recharge.

Gel Cell Batteries are typically a bit more costly and do not offer the same power capacity as do the same physical size AGM battery. The Gel Cell excels in slow discharge rates and slightly higher ambient operating temperatures. One big issue with Gel Batteries that must be addressing is the CHARGE PROFILE. Gel Cell Batteries must be recharged correctly or the battery will suffer premature failure. The battery charger being used to recharge the battery(s) must be designed or adjustable for Gel Cell Batteries. If you are using an alternator to recharge a true Gel Cell a special regulator must be installed.

If you are unsure which battery or charger is best for your application, please call or email our tech people for help making the correct selection.
Ownership Information:

No product documentation available at this time.

Warranty Information:

12 Month Full Replacement Warranty with Receipt

Shipping / Returns Information:

No shipping/returns information available at this time.