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.
This type of muscle soreness begins 24 to 48 hours after your workout and actually indicates a natural adaptive process that the body uses after an intense exercise session. When you do a new or particularly challenging workout, your muscle fibers tear on a microscopic level. It takes time for your body to repair that muscle, which is why you may feel this type of lingering soreness for up to 72 hours after that hard workout.