New car changed battery possible problem?

ok a friend of mine got a 2006 car (not sure what make model) ok so he changed his stock battery to a kenetik dry cell battery. but my question is when he is driving and barley turns on the car it seems to like have a feeling of it wanting to turn off but i doesnt when he turns it on in the morning its a little hard to start and then that stalling kind of like hesitation from the engine comes back and once it heats up it goes away so could it be the battery or somting else?New car changed battery possible problem?its a 2006 model car,why mess with it,take it back and let the dealer repair it, it has a warranty on it,if he messes with it ,he will probably make it worse than it is right now,good luck.
New car changed battery possible problem?
when the voltage is taking away for a while the engine needs to relearn its parameters it doesn't take that long only a few miles or so for idle other take longer drive it a little longer see what happens mif the battery light comes on the alternator might not be able to charge it
New car changed battery possible problem?
It's a 2006. Put the original battery back in and see if the problem goes away. If it doesn't, take it back to the dealer and have them fix it under warranty.
its a mech man give it a couple of minutes to warm up ! how would you like someone to crank you up from a dead sleep and slam you in to gear before coffeetime. tell him to relax alittle .LNBTW is the code..

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