The battery on your Bajaj Pulsar 125 Neon may be blinking for a few reasons. The most common cause is a bad battery connection, which can be caused by corrosion, damaged wiring, or a loose connection. It's also possible that the battery is low on charge, or that the alternator is not providing enough power to the battery. If the problem persists, it's best to take your Pulsar 125 to a certified mechanic to get it checked out.