hi all, please does any1 know: i have a laptop psu/adapter which says "20V 4.5A" on the sticker.. i found a replacement psu/adapter which says "20V 4A" on it. so, can i use 4A instead of 4.5A? any problems/issues?
Yes, there may be an issue with overloading the adapter when operating the laptop at the same time as it's recharging its batteries.
Keeping these two procedures separate at all times it should be able to survive.
