OK, that's definitely a 10 SI alternator with the internal regulator. You should be able to connect the battery lead to the #2 terminal with a short jumper wire and a blade connector, and just leave the other terminal open. If it doesn't begin charging right away, goose the throttle once and it should jump the voltage up to 13+ volts, minimum, and once the battery tops out on charge, the voltage should stabilize around 14.5 volts or a bit higher.
Jerry

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