Question about Invacare Pronto M51 Power Wheelchair
Now I have aother power chair that does the same thing, but it didn't until I stuck a voltage meter on it, I stuck it in wrong whole ,I think I shorted it out.
Two red lights blinking means the electronics on the chair think the batteries are low. Test the voltage on the holes marked 1 and 3. Hole 1 is positive and hole 3 is negative. Your meter must be set on DC volts and the meter leads must be in Common and Volts. If your meter has to have the voltage range set, put it on 200vdc. The red lights will blink if the voltage is approximately 22.5vdc or less. The green lights turn on about 24.5vdc or higher.
Posted on Oct 13, 2014
SOURCE: only 1 battery charges
The lights are working, the batteries aren't. Red indicates power to the charger, and it should be on all the time. Green indicates a full charge, usually. If one or both of the batteries are totally dead, then the charger can't "see" them, and you will get a green light, but you will have dead batteries.
All power chairs use sealed, deep-cycle batteries. Deep cycle batteries, are designed for slow amperage dischare over a long time period, unlike a car battery that throws out a lot of amperage for turning the motor over. That's called "cold-cranking amps", and you can load-test a car battery to see if it will throw out a ton of amps for long enough to start a car. There is NO load tester made, or possible for a deep-cycle battery. A load test requires a 24-hour time period, and a complicated formula.
So, your course is to get some fresh, gel-sealed-batteries. You will need type U-1. Specify, gel-sealed-batteries when you go to the battery shop. A fresh set should get the chair up to about 12-16 mile range, which would be about 3-4 hours running constantly at high speed. Good luck.
Posted on Jul 09, 2009
Sonny you say your batteries are good but the error you describe indicates low batteries. If you have a digital voltmeter or can borrow one. set it to 200 volts dc and plug the leads into the two outter holes of the charger plug located under the front of the joystick. Fully charged you should be reading 25-27 volts, if you are reding less than 22 volts then the batteries need charging. Now with the meter still plugged in to the joystick plug in your on-board charger. when it is on and charging you should be reading anywhere from 25-30 volts. If you are not then the charger is not putting our the correct voltage and your batteries aren't getting charged correctly. After a full charge (the yellow light on the charger turns green) you should get 25-27 volts on the meter. If all of the voltages check out then you have another problem that I need more information to venture a solution Hope this helps you
Posted on Oct 09, 2010
SOURCE: i have a pronto 2003
The error code means one of three things. First it could mean the batteries did not charge up at all. Next is unlikely ,but it also means too high of a charge voltage. The code also comes on when the charger is plugged in to charge and you turn the joystick on. The chair protects itself from driving off with the charger cable plugged into the wall outlet. One more possibility exists, the onboard charger could be bad and bad batteries. You need to have a trained electronic tech check this out.
Posted on Apr 07, 2011
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