my car is 1997 porsche boxster no cranking on 1999 Porsche Boxster

I remove the battery and put it back and just one click its start again but after I turn off the engine and start it again no cranking. then I remove the battery again and put it back after couple of hour its start.My battery is brand new. what do you think is the problem please help me how to fix it thanks

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1 answer
ck all your battey connections on both ends,sounds like a bad or loose connection