Powered by Honda’s Universal Battery System, you can use either of the three available batteries: 4Ah, 6Ah and 9Ah across the HHT36 Brushcutter and Honda’s entire Battery product range. Ensuring the longest possible run time without compromising power, the Thermo-Smart technology continuously monitors the voltage and thermal performance of every cell. Long day on the job? Simply swap or recharge your battery in moments. That means getting through the day without forced breaks. What’s better is that when using the 9Ah battery, you can operate the HHT36 Brushcutter in all weather conditions.