Our Technician will come to your place, un-install the battery, take it to our store and put for charging using our state of the art charging machines. Once the battery is charged to required voltage, the technician will keep it for observation for few hours to see if the battery can hold the voltage and not discharges fast. If the battery is holding the voltage, the technician will bring back the battery and fits to your vehicle. This complete process will take minimum 1 day. If the battery is not able to charge or hold the required voltage, our technician will call and let you know that the battery is not good. You can order a new battery and we will bring and fit it with no extra installation fee. You just have to pay for the new battery.