Agree.The battery is toast. If it is sitting at 12.16 with no load on it thats bad. Mine sits at 12.65 thats normal, it should drop slightly with the key on. A battery can show good voltage with no load on it. What does the voltage drop to with just the key on and the bike not running. If it goes below 12 volts, its done.If it was in good shape, at 14.4 volts it should take a charge with the bike running.