On the battlefield if a tank was operating alone it was likely something had gone very wrong. They were formed into units so that the crews could support each other both in combat and with the daily routine of maintenance and life on campaign.
Read more here at The Tiger Tank Blog
The German heavy tank battalions destroyed the total number of 9,850 enemy tanks for the loss of only 1,715 of their own, a kill/loss ratio of 5.74. The 1,715 German losses also include non-combat tank write-offs.
Read about WWII here