If over a year old, try a new battery. This is much cheaper than the other possible bad part (motherboard.)
Hi friends when I power on my emachines e725 laptop connected with charger its both power on led and battery indicator led start blinking red simultaneously and battery don't charge & it shutdown due to battery discharge.
But if I charge it when it's off led works normally & battery charge to full . Sometime When I power on it when it is plugged in & full charged it works normally and show battery is charging but some time not .
Strangely If I remove battery from laptop and run it directly on power adapter then laptop works normally and I can use it as many hour I want
.Please tell what may be the possible reasons power IC failure , bad battery or any thing else .My charger is fine as I got it checked at a shop.Sorry for bad english ,Thank you.