battery light came on lost power steering lights on dash

started car up few moments battery light came on, then when off drove for about hour all lights came on dash and lost power steering drove to a layby knocked engine off, waited for a few moments then started up all ok, drove for about 5 miles same again but engine was in limp mode then cut out left it for about 20 mins then started up drove home stoped again no lights just flat ? put jump leads on started fine left til next day still starting but battery light came on then went off but still ok. any help