Eclipsemp3 player dies even when it is fully charged last two songs and dies

Tt may show fully charged but batteries age and may not hold a charge for very long. .Does the unit show full batteries when it is attached to the charger after it has shut down? It may be giving a false reading. Try a battery change. If it is not the batteries or the charger, (if you are using rechargeable batteries that is,) it must be a component level fault which a technician might diagnose/repair. If under warranty period contact your supplier.