New Lenovo Laptop Charger - Different in wattage vs. original?

RobTang

I'm surprised there isn't loads of them on ebay, my work has hundreds of these thing lying around doing nothing or being re-cycled. More now they have changed then plug with the newer laptops.

paddyrg

Maplin do replacement off-brand chargers, pretty good ones to be honest. Maybe pop in to see them?

Kernel_Sanders

HappyMJ wrote: »

Edit: as buglawton says if you've a quad core processor you'll have to go for a 135W PS.

What, even those 1.3Ghz ones that some laptops are now appearing with?

neilwoods

What is the voltage and amps. Should say on back of laptop or take battery out and it should say in battery compartment.

Then take the volt x amp and it will give you the wattage.

As said maplin do a generic universal chargers.

buglawton

Beware, the T520 original charger has a resistor inside the laptop end plug, and is a specific size and polarity. So the T520 refuses to charge if it does not like what it sees. Buy a generic charger from Maplin by all means, but ensure you have black on white proof it's T520 compatible.

Fightsback

buglawton wrote: »

Beware, the T520 original charger has a resistor inside the laptop end plug, and is a specific size and polarity. So the T520 refuses to charge if it does not like what it sees. Buy a generic charger from Maplin by all means, but ensure you have black on white proof it's T520 compatible.

Yes, like Dell chargers:

http://hackaday.com/2014/03/03/hacking-dell-laptop-charger-identification/

buglawton

That article also points out it's usually the big capacitors that fail and these are easy to identify and replace. That's exactly what I once did on a perfectly good monitor that started to fail and it worked a treat.