Roamer Folding Electric Wheelchair Portable Power Wheelchair. I purchased this wheelchair for a nice portable power chair, however did not get to use it . Its only a few weeks old. Max Weight Capacity: 300 lbs . 24V 12Ah battery, the electric wheelchair has a max speed of 3.7 mph for up to 15.5 miles. Weighs about 65 lbs. Folds to fit in back of suv, trunk or under cover of pickup bed paid $1070