If a new battery becomes unserviceable within a few days or weeks after its installation it may be due to one or more of the following reasons:

A faulty charging system

A short circuit in the electrical system

Battery terminals are dirty or not properly connected

Excessive ignition off drains or high parasitic drains

Electrical capacity of the battery is insufficient for size of the vehicle

The battery has been inadequately activated, dissipating its strength from the outset

The battery, after being filled with acid has been left too long without initial charging, and has been allowed to become sulfated

Contact a qualified technician if condition remains the same.