Some examples of connector and battery parts reuse: You can use the connector to make a custom passthru or a custom battery like the NicoStik (see the modders forum). Also, if you have two batteries go bad in different ways (let's say on one the auto battery goes out, and on the other the battery gets shorted and fried), you can scavenge the good parts from both batteries and put together one good battery. For example, if it's just your autoswitch failing, it sounds like you may have a perfectly good internal battery in the battery tube. it's possible every part of your battery except the autoswitch is still in good condition and could be reused.