To diagnose a problem with the port, try using a different battery and cord for a while. Damaged Power Cord. The power cord is a wire inside a plastic sheath, and the wire can break with or without damage to the sheath. If the power goes on and off as the cord is moved or bent, the wire is likely broken.
You can work out if you're sore. Don't exercise the same muscle groups that are hurting. Do legs one day and exercise your upper body the next. By doing so, you'll still be able to get exercise and allow your lower body to recover and rebuild.
Injury Versus Routine Soreness. Routine muscle soreness usually peaks about 48 hours after your workout and resolves in 72 to 96 hours. You usually won't feel much, if any, pain right after your workout, but you may wake up the next morning stiff and sore. If you injure yourself while exercising, you'll usually feel the pain right away.