Merits Pioneer PT3 (S139) Scooter Parts

This page lists replacement parts for the Merits Pioneer PT3 (S139) 3-wheel mobility scooter. We carry U1 battery packs, including a 24-volt 32 Ah gel pack and a set of two 35 Ah AGM batteries, 24-volt battery chargers, and a female charging port assembly for Pioneer series scooters.

The Pioneer PT3 requires 25 Ah U1 batteries; the U1 packs we list are 32 Ah gel and 35 Ah AGM. It uses a 5.0 amp charger, and the chargers we list are 24-volt 5.0 amp units, including the 24BC5000T-4 XLR. The model number is on a label on the frame, usually under the seat. As an authorized Merits dealer, we supply genuine OEM Merits parts, with compatible alternatives on select items. Can't find your part? Contact us with your model number and a photo of the old part, and our team will help track it down.