Caution should be taken especially when climbing or descending a slope with a load either on the rear or front as it can cause the mobility scooter to tip.
Either the front or the rear should not have more than 6.8kg of weight, that is, for example, an oxygen tank should always weight less than 6.8kg and if you are carrying the likes of shopping in the front basket, it should weigh less than 6.8kg.