How long does it take to charge the charger of Yemaha lawn mower?

The charger of Yemaha lawn mower needs to be charged for 5 hours. The lithium battery life of Yamaha lawn mower is 2 ~ 3 years. It takes five hours for the charger of Mustang mower to be fully charged. The service life of lithium batteries is only two to three years, and it can be used for about 7 hours once charged. 2 1V lithium battery mower is fully charged for almost 5 hours. If it works continuously, it can last about 1 hour, and if it is cold, the time will be shorter.