Lexus new battery no power?

I check them, there ok they have electrical current, cleaned the conectors, car had power and worked all day before old battery went low, all I did was disconnect old one connect new one. I check fuses there ok, still no power, what else can it be?

No, battery has power, positve to positve negative to negative, I just dont have power nothing comes on, no noise nothing.

Oh ok, no, I did not, I made sure I connected it right, I have not tried to jump start it since the battery is new, I know its hard to understand but I am giving you all the info, my car is just sittin now havnt tried nothn else, all I know, my old battery gave me power at least to my accesories, ect, disconected the old one put a new one in and bam no power, thats where im at. Im stumped. Thanks for all the info guys

I will try to check all fuses and go threw all connections tomorrow as im off, didnt try the high beam thing because I have zero electrical power lights wont dim because they wont even turn on. Basically is acting like I have no battery connected at all. Thanks for the advise

I have the same problem. My GS 430. I replaced the battery 2 weeks ago every thing running fine. The it die at a stop light started up fine. Then next day car totally dead no lights at all I can not open the front hood.

You nailed it. Moved my positive cable and every thing worked. The cable felt tight but was not. Cleaned the cables and terminals spared cable open hammer the down easy. Car started have had no problems. Thanks for the tip. No mechanics chargers.