S141 Pioneer 4 4-Wheel Mobility Scooter


S141 Pioneer 4 4-Wheel Mobility Scooter

The S141 Pioneer 4 Scooter is one of the devices which not only takes in mind your practical needs but also considers the tastes and preferences of different types of buyers.

The model designed by Merits Health comes with high-tech electronics and modern features in order to provide a comfortable and safe ride. Consequently, each user of the S141 Pioneer 4 Scooter is granted with unlimited independence and freedom.

Key Features

Key Specs

• Delta Tiller with a throttle control lever • 450 lbs weight capacity
• Adjustable captain seat and armrests • 5 mph top speed
• Headlight and rearview mirrors • 18 miles drive range
• Front basket & Front bumper • 190 pounds total weight

The S141 Pioneer 4 Scooter’s dimensions are 47" (L) x 23" (W) x 45.5" (H). The seat is 20 inches wide and deep. Furthermore, the seat comes with an adjustable backrest height of 20 inches. Even though the device weighs 190 pounds, it has a weight capacity of 450 pounds. Merits have designed this Scooter in order to capture a wide range of audience, and consequently provide a suitable ride for each of them.

The combination of DC 24V, 250W motor, and two pieces of 12V/U1(34AH) batteries provide a top speed of 5 mph and a maximum range of 18 miles. Yet, in order to achieve these values, each individual must take care of its device and follow certain advice such as keeping the battery life to its maximum lifetime.

When it comes to the security of the ride, the Scooter is accommodated with anti-tip wheels and front bumper. Furthermore, the brakes are intelligent, electromagnetic ones.

Speaking of comfort, the S141 Pioneer 4 model has adjustable armrests, captain seat and can be enhanced with additional accessories such as the foldable rear basket, oxygen tank holder, cane & crutch holder, walker holder, and a canopy.

Batteries - Battery Life and Charging

Once you purchase the Scooter, you will notice that the device comes with sealed, acid lead 12V/U1 (34AH) batteries. At first, each user needs to charge the batteries fully, in order to provide a maximum battery life, power, and range. Consequently, the user will get the best possible ride.

There are two ways in which each user can charge the S141 Pioneer 4 Scooter: onboard and off-board. The difference between these two is whether you plug the charging cable into the rear or the tiller.

Furthermore, if you use the scooter each day, you must make sure to charge it after each ride. If you purchase the Scooter for driving it once in a while (ex. once in a month), you still need to make sure to charge it at least once a week in order to keep the battery life at its maximum.

The battery Level Indicator shows the level at which the batteries are charged. More specifically, red indicated that the scooter must be charged as soon as possible, and green shows that the batteries are fully charged.

Security and Safety

There are several features regarding the safety of the ride of the S141 Pioneer 4 Scooter.

Brakes and Throttle

The brakes and the throttle of the scooter are incredibly synced, whereas once you press the speed lever it releases the brakes and the scooter moves. On the contrary, once you release the speed lever, the electromagnetic brakes are activated automatically and the scooter decreases the speed or stops (depending on how much you release the speed lever).

Speed Control

The Control Panel contains two buttons: a Turtle and a Rabbit. These buttons are used to control the speed of the scooter, whereas the turtle makes the scooter go slower and the rabbit increases the speed. The speed has 6 levels and each time you press one of the buttons, it changes the speed by 1 level.


The horn is activated by simply pressing the horn button and is mainly used in traffic where you need to warn someone (a human or an animal) that you are moving towards them.

Turn signals

The turn signals are also a significant matter when it comes to other participants in the traffic.

  • Headlight
  • Hazard light
  • Status Indicator

If all conditions regarding the scooter are normal, the status indicator is on. The light flashes when there is a certain situation which requires the attention of the driver.


The handbrake is designed for special cases only because it has the same function as the normal brake. However, if you panic or you need to instantly stop, you can pull the handbrake and the scooter will immediately stop.

Adjustable features

Seat adjustments

The seat can be suited to anyone’s needs because of its four adjustable features: backrest angle, seat swivel position, armrest width, and armrest height. The seat swivel lever is positioned on the side of the seat and allows 45 degrees rotations. 

Tiller Angle Adjustments

This feature permits each driver to position the tiller as near or as far as he/she may need to. More exactly, Merits have designed this feature in order to provide better access to the controls.

Freewheel mode

The freewheel mode of the scooter provides manual operation. More exactly, the freewheel mode deactivates the brakes and all the other operations. So, this mode is mainly used when you wish to push the scooter or you simply run out of battery power.


Apart from all the above-mentioned features, the S141 Pioneer 4 model comes with a warranty for all purchasers. So, if you are a doubtful person or you simply don’t believe in the qualifications or performance of the scooter, you still may give it a try and see if the features are promising enough for your personal use.

S141 Pioneer 4 Features and Specifications

  • Dimensions: 47" (L) x 23" (W) x 45.5" (H)
  • Seat Dimensions: 20" (D) x 20" (W)
  • Backrest Height: 20”
  • Unit weight: 190 lbs.
  • Weight capacity: 450 lbs.
  • Top Speed: 5 mph
  • Maximum Range: 18 miles
  • Tires: 10" flat free
  • Front bumper, anti-tippers
  • Electromagnetic, intelligent, regenerative brakes
  • Motor: DC 24V, 250W
  • Controller: Dynamic Rhino 70A
  • Batteries: 12V/U1(34AH) x 2pcs
  • Charger: Off-board Charger 5A
  • Turning Radius: 52”
  • Gradient: 8°
  • Ground Clearance: 2.5”
  • Available in red color
  • Adjustable armrest
  • Adjustable captain seat

Available accessories

  • Oxygen tank holder
  • Cane & crutch holder
  • Walker holder
  • Canopy
  • Foldable rear basket



    Do not hesitate to contact us in order to get a more detailed explanation about the specifications of S141 Pioneer 4 4-wheel mobility scooter. You can contact us by either giving us a call at 1-800-314-8225 or emailing us at hello@sprylyfe.com.