A Collector is a Weapon that can't be used to fight with. Instead, you can Collect with it.
A Collector can be bought from a Collecting Manager.
A Collector is a Two-handed Weapon.
A Collector uses up Batteries to give it Energy, it's Energy needs to be at least at 1 to be Started.
A collector has 1800 Energy, which is used up periodically after you Start it.
If the Upgrading Fails, the Collector will not break.
Go to a Collecting Area, and buy a Collector from a Collecting Manager. Then going into the Collecting Area with your Collector equipped. Then click Start on the box that pops up when you have a Collector equipped. You will then start Collecting.