Can I replace original 16V adapter with a 20V adapter?
by admin on Feb.17, 2009, under IT News
I have an older IBM R40 Laptop with an AC adapter with and output of 16V, 4.5Amp. I ordered a replacement from Lenovo but it is a 20V output unit. Can I safely use this?
I wouldn’t use this adapter. If you are replacing the AC adapter, it’s very important to buy a new one with exactly the same voltage. Higher incoming voltage can damage the laptop.
You can follow this rule when you are looking for a new adapter. The voltage output must be the same. The amperage can be the same or higher than on the original one.
I don’t think that you can safely use a 20V adapter instead of your original 16V adapter.
