my 02 camry le feels a little weak when cranking when i bought it the battery was dead and when i tried to turn it on i heard the clicking. after that i took it to a mechanic who charged th battery but it still feels weak so my questionis can this just mean i need a new battery or anything besides the battery.

 

did you check the batery have good connections (postitive and negative cables)?

 

yea checked it and sprayed it with corrosion cleaner but its still the same

 

did you check the chargering system with an ohm meter?

 

buy a new battery

 

It's probably the battery. A load test on the battery will confirm, but given the condition you bought it in a new battery is not much of a cost fix. If it happens more when the car is hot it could be starter. Resistance goes up with heat so a weak battery will not be able to push as well and a starter will not turn as well.