Is it better to have higher or lower WH number on batteries?

A higher watt-hour (Wh) number on batteries generally indicates a greater capacity to store energy, allowing for longer usage time before needing to be recharged. This can be beneficial for devices requiring extended operation, such as laptops or electric vehicles. However, a higher Wh rating may also result in a heavier and bulkier battery, which can be a drawback for portable devices. Ultimately, the ideal Wh number depends on the specific application and balance between capacity, size, and weight.