ASUS U56E Battery - Replacement for original ASUS U56E batteries. Rechargeable li-ion battery for ASUS U56E compatible original Li-ion ASUS U56E Batteries are rigorously tested for voltage, capacity, compatibility and safety to exceed original equipment manufacturer specifications. With 100% OEM compatibility, this high capacity replacement ASUS U56E Battery includes a one year warranty and 30-day money back guarantee.