battery light stays on but running fine

[Starhawk]

many thing could happen to your car, when your battery is weak. Recently, my 2007 Yaris had gas pedal had no power when I stepped on it. When I took to a mecahnic, he suugested me to change the air filter which I did and there was no change on the gas pedal, so he suugested me to take to the dealer, the guy said to me that the technician will need at least an hour to look for any problem. WhenI got home, i got a call from the dealer, he said to me that because I was having an after market remote starter installed in my car, which causes the problem, he said that the Toyota experienced technician will have to check all the wiring, and run them again which he will need another three hours to do so, and each hour will cost me $110.00+ Tax. Which will total about four hours. By evening, I went to the dealer, the service agent said to me that my car had a serious problem, which the technician had to spend more time to check all the electrical wiring and so on, But the tests are ok and the car has power on the gas pedal, and he also told me that the battery is weak and I needed to replace the battery.... It costed me $497.00 and change just for that( istead of saying, we checked the battery and found it was very weak and needed to replacedand if that was the case, it wouldn't have costed me $497.00). I believed that for any problem we have with our cars, and if we take to the dealers, they know what the problem is ,but they just wanted to make as if very hard to find and charge us more.