Laptop Charger Replacement

[silent_god 121]

Dear Friends,

I have a query for interchange of laptop chargers & I am sure that it will be useful to many of us who has 2 or more laptops (mainly office / home) or uses their laptop at two different locations.

I have used word - laptop charger, but also mentioned @ many places as AC adapter.

I have following three chargers with me.

Charger 1

Office Fujitsu Laptop

Make - Fujitsu

Input - 100-240 V, 1.2-0.6 A, 50-60 Hz

Output : 19 V, 4.22 A

Charger 2

Home Samsung Laptop

Make - Samsung

Input - 100-240 V, 1.5 A, 50-60 Hz

Output : 19 V, 3.16 A

Charger 3

Old HP Laptop - only charger available.

Make - HP

Input - 100-240 V, 1.7 A, 50-60 Hz

Output : 18.5 V, 3.5 A, 65 W

All charger output PIN polarity is same. i.e. + in center & - in outside.

Input pin dimensions are different, but assume that we can manage connectors (male/female), which can connect any charger with any laptop, without any polarity change.

Now, my questions are :

1) Is it possible to use Charger 2 (with 3.16 A) to charge office laptop (which has 4.22 A charger) ? Voltage is same for both the chargers.

2) Is it possible to use a charger 3 (with 18.5 V) to charger office / home laptop (which uses 19 V chargers).

3) Are there any adverse effect on laptop hardware (like mother board / battery) due to interchange of any of these chargers ?

4) Does, laptop OEM put any restriction in laptop, which senses change of chargers & gives message or malfunction. Agree that they write specific instructions in their manuals for using original accessories compatible with the laptop.

Experts in the similar field are requested to give your comments, as with sound technical knowledge, we may be in a position to interchange chargers, if not for long use but even for emergency / temporary charging.

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[kshah 452]

It can be done, only precaution need to be taken is to ensure zero spark gap as current is high, hence spark could be dangerous.

Aftermarket sockets are of poor quality.

[Guru Gopal 589]

We have to see the correct Voltage. Lower Amp is not a problem. It will charge slowly. High Amp will charge battery speedily.

[kshah 452]

Couple of volt does not make difference. It it is more than 2v then it's a matter of concern.