Why my laptop keeps shutting down despite having power in battery

I accidentally allowed foam cleaner to access the inside cover of my hp elite book 840 g2 and afterwards the battery has been behaving really awkwardly. every time i power it on without the AC adapter, it does not completely come on. it shuts down before completion of the power on process with a click sound . but whenever i use the adapter, there ain't such a problem. this happened immediately after exposure to the foam cleaner and has been the same ever since. i believe the motherboard is the one that was affected as it was close to the ventilation regions at the time of exposure. how should i go about this. please help.