Toyota Repair: 87 pickup help, power situations, battery cables

Question
hello, i recently aquired an 87 toyota pickup when i went to get it it had a dead battery so i jumped it ran like a champ all the way to my house( about 30 miles away). the next time i went to start it the battery was dead again, i thought that was weird becuase the long drive should have charged it. so i jumped it and it ran like a champ again. so i figured get a new battery, cables ect. after i installed it all it just acted like the battery was dead again, considering it sat a few deys i thought well maybe something was left on and that drained the new battery, so i jump it yet again started right up. this time i decided to pull the + lead from the battery, still ran like a champ headlights on and everything didnt skip a beat. so then i figured the alternator must be good. next test i took a battery that i knew worked very well from my other truck stuck it in there and nothin just ticktickticktick really fast so im stumped. lastly i grabbed the cables yet again and hooked them from another vehicle that wasnt even running and connected it straight to the toyota'lead wires without a battery and she fired right up usually i can troubleshoot my way through these kind of power situations but in this case i am stumped. any sort of direction would be greatly appreciated thank you, matt  

Answer
pull the neg cable off and put a test light across in series.
The light may light for a minute or two (key out, doors closed)
but should go out. If it stays on you have a draw on the battery.
Check the charge system running. should be 12.8-14.6 volt at the battery.

Mike