Oneda 90W 20V 4.5A AC Power Adapter Laptop Charger for Lenovo Thinkpad E30 E31 E40 E50 E125 E135 E320 E330 E325 E335 E420 E420S E425 E430 E430C E435 E520 E525 E530 E535 W500 W500p Supply Cord Input Voltage: AC 100-240V, Total output power: 90W, Output Voltage: DC 20V, Output current: 4.5A (45W, 65W compatible) Improve the service guarantee, Satisfaction guaranteed and backed by a one year replacement warranty. Oneda new high-quality power supply adapter, a good reputation, as has always insisted on manufacturing quality products. Reliable circuit board design: overcurrent, overvoltage, overload, temperature and short circuit protection. Core security components, multiple protection and safer. Comprehensive environmental testing: to ensure the safety of products, apart from the strict implementation of 72 hours aging test, the test must also deal with a variety of physical and destruction, 100% quality assurance testing.