M51 charger has solid red light and a blinking green light

Here's a link to a bunch of replacement chargers....

https://www.google.com/search?q=Invacare+M51+Surestep+replacement+charger&newwindow=1&sxsrf=APwXEddmA91gRXeJPK8JzJf9dHNyEAAvMQ%3A1682171313277&source=hp&ei=seVDZLTIDv3OkPIPkd-S8Ag&iflsig=AOEireoAAAAAZEPzwSyXMv34ozadubH2bPfwxcQtlSi0&ved=0ahUKEwj05M680L3-AhV9J0QIHZGvBI4Q4dUDCAs&uact=5&oq=Invacare+M51+Surestep+replacement+charger&gs_lcp=Cgdnd3Mtd2l6EAMyBQghEKABMgUIIRCgATIFCCEQoAE6BggAEBYQHjoICAAQigUQhgM6BQghEKsCUABYglVgkFpoAHAAeACAAe0BiAGGGJIBBjAuMjAuMZgBAKABAqABAQ&sclient=gws-wiz

Best to you

Mine is an Invacare M51 Pronto Surestep with an onboard Winsunny battery charger. My charging lights are solid red and green/ yellow. Depending on if it is charging or not. What kind of charger do you have?
I have to replace my charger because it is not working. My green light is staying green while charging even though my joystick is showing my batteries are depleting and I just got new batteries. sigh.

It means the battery voltage has dropped below the operating range of the chair electronics. Either need new batteries or maybe a charger and new batteries. There is always a chance of loose battery harness connections.

Throw away

why did you change the batteries, did you verify that it wasn't the charger in the first place, sometime the charger will appear to charge but actually isn't. put a meter on one battery then plug in charger if voltage goes up charger is good if not look for loose connections and or bad charger.

Eduardo After using your chair and the battery level lights are down with yellow or red lights showing just plug the chair into the wall socket and let er rip. Now really after using your chair during the day and you are ready for bed just plug in the charger and let it charge over night. In the morning unplug the charger and you should be set for the day. If you don't use the chair everyday always put it up with a full charge and about once a week plug it in and let it charge overnight. Never leave the chair plugged in all the time and never leave it for more that 24 hours. The charger has two lights on it one red and one yellow or green that are hard to see because they are under the rear cover. When the chair is fully charged the yellow light turns green and you can unplug the charger and you should have a full charge. Hope this helps you

Jo, nope you are safe. Most of the chargers are designed to cut off and go into trickle charge once they sense that the batteries are fully charged. The problem with overcharging comes after 18 hours or so. You should never leave the charger plugged into the chair for more than 24 hours. On the M51 the charger is built into the chair so just plug it in when you go to bed and unplug it when you get up and you'll be ok. You can check for full charge by looking at the charger there should be a red light and a green light when fully charged. Hope this helps

With an M51, a full charge will be indicated by all three joystick indicator lights lit- red yellow green. The green far right LED is the full charge light. Also the charger has indicator lights that go from red/yellow to full green at full charge. Hope this helps

on my m51 the lights on the charger are red and green the green is flashing what is this telling me.also should i have the controller on when i plu in the charger my chair i 6 years old battery replaced 2 years ago