How can we help you? How do I replace the batteries on my MPV4 or MPV5 power wheelchair? 3 out of 5 found this helpful You can download the following instructions on how to replace the batteries in your Hoveround power chair. Replacing Battery Instructions MPV4 and MPV5 with a serial number lower than 5800000 MPV5 with serial number greater than 5800000 Was this helpful? Yes (3) No (1) Category: General Related Questions Is there any maintenance required for my power chair? How long is the warranty on my Hoveround power chair? How do I Lock the Controller of my Hoveround Power Wheelchair? Can I take my Hoveround power chair outside?