I recently purchased an extended battery and an external universal charger for my Verizon Galaxy Nexus. There were no instructions for actually charging the battery. There are 4 terminals on the battery. There is a + and - printed on the new and the old batteries, but they do not line up with a particular terminal on the battery. Also the universal wall charger has 2 probes that do the charging, they are both mobile (can slide left or right) and neither one is labeled. Any help about which probe and or terminal would be appreciated. Thank you.