UK £18.61 Genuine IBM 90W Charger for lenovo ThinkPad T400s T410i T410si T420s Adapter

This ac adapter IBM_LENOVO20V4.5A90W-7.5x5.5mm may be fit for the following models ( Customer offered ):
T410, S515, L512, T530, Thinkpad T530, X61s, Lenovo T60, 75Y4442, T430, T420, 0657, R61i

Do not use low quality ac adapter?

Why choose this UK £18.61 Genuine IBM 90W Charger for lenovo ThinkPad T400s T410i T410si T420s Adapter

UK £18.61 Genuine IBM 90W Charger for lenovo ThinkPad T400s T410i T410si T420s Adapter

• This ac adapter have short circuit protection, overheat protection circuit
• This ac adapter have very clean output, which can protect cpu, hard disk,video card and all the device.
• This ac adapter have a very good heat dispersion, that's means it is very safe when you use it for a long time.
• This genuine laptop ac adapter will longer your laptop battery life.
• It is a genuine ac adapter.

How to choose this UK £18.61 Genuine IBM 90W Charger for lenovo ThinkPad T400s T410i T410si T420s Adapter

1. Your original adapter output volt is 20V.
2. Your original adapter output Current is 4.5A.
3. Make sure its DC tips size is the same as your original.

F.A.Q: Why is my old adapter easy to become very hot, But a new genuine 20V 4.5A Ac Adapter will not?

1. Your machine use external alternating current (AC) adapter, which converts high voltage alternating current into low voltage, stable current. Adapters of this type can be too hot to be touched.
2. The 20V 4.5A AC adapter include two circuits to ensure a constant power supply device adapted to the computer or others. A transformer reduces the voltage, but a regulator provides a constant electricity, without "noise". These circuits use a small amount of electricity and generate a small amount of heat. The 20V 4.5A AC adapters usually feels a little warm. They can be warmer when the device is using a lot of electricity, for example whether it is running and charging the battery. There is no reason to worry about an adapter if it is too hot to touch comfortably.
3. Adapters sometimes overheated because the circuitry in them, such as the regulator, are malfunctioning. If the part is bad, it can produce excessive heat and must be replaced. The device itself can sometimes take too much current from the adapter, increasing the current passing through it, so it will be too hot.
4. 20V 4.5A AC adapters are based on air passing over them to dissipate heat and cool them. If the adapter is covered, such as a blanket or rug, the excess heat is trapped and then the adapter will overheat. Ensure to keep the adapter from obstacles. If ventilation is adequate, will remain at a moderate temperature.
5. If you use a low quality replacement 20V 4.5A ac adapter, It may not have a heat-dissipating aluminum plate inside.
6. If your 20V 4.5A adapter has only recently become very hot, it may be malfunctioning and you need to change it to avoid damage to the internal components of the machine.
7. Buy this original 20V 4.5A ac adapter is usually not easy to heat, because it is designed with good heat dissipation performance in mind, And it has passed many safety and quality certifications.

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