What does one flash mean on my pronto m51 controller

SOURCE: How do I charge My Pronto M51 motorized wheelchair?

I also have a Pronto M51 and use it daily. I have found though by leaving the charger plugged in over a weekend, it reduces the battery range and does not come back to normal until I use it for a week and charge it nightly. You can overcharge the batteries because the charger does not shut off entirely. I have monitored this with my meter.

SOURCE: pronto M51 ...the yellow light is blinks and dosen't stop

Take your drive units both out of gear and put them back in that will reset the computer and it started mine working again.

SOURCE: tool; light blinks 9 times battery is charged

the batteries were dead

SOURCE: invacare pronto m51 moving very

Check that the speed control on your joystick is set to high. If it is then you probably have a battery problem. Even with all the lights lit on the joystick you can have one battery of the two on the chair that is not charging fully. This will cause the M51 to creep and not work correctly

SOURCE: I bought a used pronto m51. What is up with the

Jhester Well You just need new batteries. Does the chair come on when you diconnect the charger and does it move? If you don't have all the battery level lights lit up when you turn it on then the batteries are too low for the charger to pick up. No lights no power New Batteries Hope this helps