When I plug in battery charger, red power light goes on, but will not charge.

Try:
http://foxtango.org/foxtango001.htm

When the red light is on it is to indicate that the charger is getting power from the wall outlet. If there is a second light that normally comes on Green when charging pay close attention to it when you first plug the charger in. See if it blinks even once then turns off. If it does that means the charger is not seeing any battery voltage at the plug that goes into the chair. If the green light does not blink at all then it usually means the charger is defective. Also most wheelchair battery chargers will not charge the batteries if the chair is to dead to even turn on.

Do the batteries charge? Are they charged? The green indicator normally is the status signal that the battery is charged and the red indicates that the battery needs charging or is charging. If you plug in a charged battery, some chargers will flash red momentarily then go out. This is an indication that the charger checked the battery (red light) and if the charge is good, the red light will go out. I hope this helps you.

Janice check your charger it could not be charging the batteries. Now always charge your batteries overnight while you sleep When you get up lights on the charger should be red and green if they are red and yellow then the charger hasn't fully charged the batteries and overnight should be more than enough time to charge fully. This could indicate a bad battery remember new doesn't always mean good. Like they say always charge before use and this goes for new batteries too you need to charge new batteries nightly for 10-15 days before they start operating at 100%. If when you plug in the charger before bed and the lights are red and green then there is a problem with the charger or the batteries or the charger circuit Hope this helps you

Phil the red means battery is low and the green is a speed limit code because of the low battery if you have charged your batteries and you still get the red then you need to check the charger after charging all night does the yellow light on the charger turn green? if when you first plug in the charger if the red light is on and the other light is green then there is a problem with the wiring or connection to the batteries from the charger and you aren't charging the batteries. if when you plug the charger in and you get a red and yellow light then the charger is working but you don't ever ge a green light and the battery level gauge is still showing red then you need to replace the batteries Hope this helps

doug then you could have received a bad battery or you have a charger problem or a charger circuit problem. If the chair comes on then the wiring is ok. when you plug the charger in do you have a green light and a yellow light on the charger? (when fully charged the light goes from yellow to green indicating full charge) If when you plug the charger in and you have a red and green light then there is a problem with the charging citcuit. I would contact your provider where you got the chair to have them check it out for you Hope this helps

If you plug the charger into the wall, turn on the power switch and the light comes on, the charger should be working properly. Here is a way to test it-
Attach the charger that came with the power chair to the power chair controller firmly and turn the power chair on, while the charger is running. What should happen:the lights on the controller will scroll back and forth. If this does NOT happen and you can confirm the charger is turned on, the charger handle is fully seated inside the controller receptacle and the wall outlet has power, then the charger may have a problem and needs to be replaced.

If the charger is OK, then there may be a problem with the batteries. Here are some sypmtoms:
1-You connect the charger but the light on the charger never goes red, it just stays green.
2-You connect the charger but the light goes from red to green VERY fast.
3-The charger light goes from red to green but when you disconnect the charger and press the power button on the controller, you only have one flashing red light, or the batteries drain within just a few minutes of use.
4-The power chair has been stored or sitting idle for several months.
5- The power chair has been connected to the charger 24-7 for several months.
Any of the above examples indicates that the batteries are oxidized or damaged and will most likely need to be replaced. The MPV5 takes two, U1 12 volt 33 amp batteries which can be purchased at any battery warehouse store like Interstate Batteries or Batteries Plus.
Good luck!

My old Panasonic Palmcorder IQ shows a red light in both switch positions-camera and VCR. Maybe yours has red for camera and green for VCR so you could tell them apart. I found that the Panasonic battery that came with the camera was the cheapest kind with the least charging time. I bought other batteries, they were good for a while, but now, many years later, they won' t hold a charge. Since I am only recording inside of my house, I have resorted to using the AC wall socket for power. I have to take the battery out of the camera. I found a power plug-in hole (like ones on cell phones) in the battery compartment. I also found one of these holes on my battery charger. My camera came with a double ended power plug. I plug one end into my camera and the other end into the battery charger. I plug the charger power cord into the wall outlet, and I have power to my older camera. Maybe you can find this double ended power cord at a store or on line.

Did you know that there are 2 kinds of batteries? Some have memories and others do not rely on a memory. The ones with memories have to be fully discharged or they will only charge a little, and keep charging less and less each time they are charged. The ones without the memory can be charged fully without being discharged fully. Check into battery information on line to get more information. Maybe you can get the non-memory kind.

read the owners hand book
normally the lights stay red until the battery is charged then it goes green
if the power is cut or if you switch the point off with the charger still in it and do not remove the charged battery , the battery will discharge through the charger

clean the contacts of the battrey and the charger.if that does not work replace the charger or the battery.goodluck.