My jazzy select 6 will take a charge but it should have both green lights on so it's fully charged and when I turn it on all the lights are lit up like from red to orange to green then I start to use it and it goes right down to a flashing red so you think it's the batteries or the circuit board
We would encourage you to take the batteries to an auto-parts store such as Batteries Plus, Autozone or a WalMart with an automotive center to get the batteries "Load Tested". This will determine the health of the batteries. If the batteries test at less than 70%, the healthiness is compromised and we would recommend replacing them.
If the batteries test above 70%, their health is fine. Often the flashing red light is a diagnostic code which will give us an idea of what is wrong with your unit based on how many times the light is flashing before pausing. Please feel free to contact us with the serial number of your power chair in addition to this diagnostic information so that we can trouble shoot further.
Feel free to call us at 1-800-798-0325 or email us at contact@monsterscooterparts.com with that information.