My Swagtron 5 Elite won’t charge most of the time. I have tried 4 identical Swagtron chargers including 2 brand new ones with the same results so I know it’s not a bad charger. Almost all of the time the charger’s green light stays on showing the battery is fully charged but it really is only 76% or 85% or 92% etc. Sometimes the light turns red for a few minutes and then goes back to green again. Is this a battery issue or controller issue or maybe a charging socket issue? It seems like the charging port socket is a just a little loose, could that cause this charging problem? Swagtron is no help saying I need to pack it up and ship it to them to find out what the problem is and it’s out of warranty. It hasn’t been used much since I sent it to them when it was still under warranty about 2 years ago when the front wheel (with the motor) locked up. They said they replaced the motor, battery and the controller. Any help would be appreciated!