OEM REPLACEMENT CHARGER, High Quality, Heavy Duty, Long Reach Cables! Power Chair/Scooter Battery Charger, Off Board 24 Volt 2 Amp, Universal 3 Prong, Fits Charging Port On All Models. Replaces On-Board Chargers, Plugs Into Front Of Joystick On All Power Chairs And Tiller Handle/Battery Packs On Scooters. (Battery Charger 101) Typically, 2, 3, 5, 8 amp off board chargers are types that come with mobility equipment from the manufacturer, this depends on manufacturer recommendation and how equipment is originally ordered. All Power chairs/Scooters have 2- 12 volt batteries in series to make 24 volts. The 2amp charger is for 12 18 amp batteries/battery packs, seen in smaller portable Pwc/Scooters. The 3amp charger is for 34/35amp batteries, seen in medium to full size Pwc/Scooters up to 300lb weight capacity. The 5amp charger is for 55/60amp batteries, seen in full size larger Pwc/Scooters up to 450lb weight capacity or with features such as Power tilt/recline, elevation and leg rest foot platform. The 8amp charger is for 75-100 amp batteries, seen in full size Pwc over 450lb and some larger 4 wheel scooters or with features such as Power tilt/recline, elevation seat, leg rest foot platform. To determine which charger you need, look at the back of your charger for output amps or consult with owner?s manual, dealer or product manufacturer. Contact us thru to determine which type is needed or call 606-339-7409