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Golf Carts. A Necessary Transportation System on Golf Courses​​ A golf cart is a transportation system not seen in sports other than golf. This article looks at the reason that golf carts are used for the sport. Golf is a competitive sport in which players hit a ball with a club from hole 1 to hole 18 to put the ball into the hole cups while trying to keep the number of strokes at a minimum. At a glance, golf seems to be a static sport, but to cover eigh- teen holes in a round, players must move around six kilometers in a period of three to four hours, which requires quite a lot of energy. Also, be- cause the players must carry heavy golf clubs in a bag, they usually receive help from caddies as well. After the invention of the automobile, golf carts are introduced as a sport.​​ ​ Eco-Friendly Golf Carts that Complete Eco-Friend- ly Golf Courses - The Evolution of Golf Cart Power Source: Gaso- line > Lead Storage Battery > Lithium-Ion Battery​​ From a man-powered handcart, a golf cart has evolved into automotive forms, using various chemical fuels such as gasoline and diesel. Such fuel sources, however, created noise and exhaust smoke, which took away from the beauty of golf, which is that it is a sport played in nature. After fossil-fuel-powered engines, golf carts be- gan using lead storage batteries. Like electric ve- hicles, golf carts powered by lead storage batter- ies consist of a motor and electric power source 12 WWW.GOLFCAROPTIONS.COM PHOTO: Club Car Tempo only and not an internal-combustion engine. This gave a big advantage because noise and exhaust smoke were not a problem anymore. However, because lead storage battery carts had lower power output than their predecessors, it was difficult for them to climb golf courses with steep slopes. Also, maintenance was an issue, because lead storage batteries are prone to oxidization of sulfuric acid, which requires regular injection of distilled water. Corrosion, too, was considered to be an inconvenience that plagued this form of golf cart battery. In the next stage of golf cart battery evolution, lithium-ion battery was developed. The new type of battery now had high power output and did not require frequent maintenance work. Lithi- um-ion battery only has the weight one-fifth of a lead storage battery, which serves the most im- portant function in the golf course: not damaging the grass. Also, the new battery makes it easier to steer handles in golf carts and has a power out- put as high as gasoline engines, which allows it to easily climb steeper slopes. Furthermore, winter weather is not a problem for lithium-ion battery because its low-temperature output and charge efficiency are excellent, and another advantage of the battery is that it has twice the life cycle of lead storage battery even without special mainte- nance other than regular charging.​​ Golf Cart Becomes a New Market for Lithium-Ion Batteries​