I have a Smartech battery charger charging my car battery for the last two years since I haven't been driving the car. I just realized I have been charging it wrong.
The manual said for a negative grounded car, I have to connect the positive cable clamp to positive post of battery and negative cable clamp to the vehicle chassis.
However, I connected the negative cable clamp to the negative post of the battery.
That's my bad of not reading the manual first, but did that already damage the battery or the even the charger? The car still starts and the charger never gave me any warnings. I'm hoping no damage is done.