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| Chevron:
Hi all, So i have 2 old IBM Thinkpad's taking up space and gathering dust. I am thinking of stripping these down to use in 2 small bar tops or one bar top and one jukebox. I don't have any working chargers for them. i can power them up with a universal charger off my main laptop but cant use it for th projects As always i try to get things done as cheap as possible so buying new chargers is out of the question. does anyone know of a away of wiring up laptops to be powered with out an actual charger ? maybe with a transformer plug to bring voltage down from 240v to 12v/19v. anyone done something like this before? |
| MonMotha:
Depending on the era, it may refuse to work with something that doesn't ID itself as a compatible charger. Otherwise, a "laptop charger" is really nothing more than what you describe: a 12/19V (as appropriate) power supply. The actual battery charging is handled by the circuitry in the laptop. An off-brand Thinkpad compatible charger shouldn't be that expensive. I don't think you'll find a suitable generic power brick much cheaper, and a proper "charger" would be plug-and-play. They have to put out a decent amount of power. 60W is about the minimum you'll get away with, and most will want more than that should they decide/need to charge the battery. This is a lot more power than your typical "wall wart" puts out. |
| stripe4:
--- Quote from: MonMotha on November 30, 2012, 05:02:40 am ---An off-brand Thinkpad compatible charger shouldn't be that expensive. --- End quote --- It isn't. When the original charger's cable started losing contact, I bought the cheapest off-brand ThinkPad charger I could find on eBay but it lasted only a year or so. Later I popped both chargers open and the difference in components used in a genuine and an off-brand charger were staggering. Made me wonder whether the off-brand charger wasn't actually damaging the laptop. :dunno So I would rather recommend getting a used genuine charger rather than a cheap knockoff. |
| kahlid74:
My experience with this is as long as you qualify the Voltage and Amperage requirements, any charger will do pending the plug fits. Personally I have a Dell LCD monitor (20 inch) that busted but it's charger works on every dell laptop I have ever come across (newer generation). If you want to do it on the cheapest I would identify the V/A reqs and then ebay that looking for adapters that qualify. Then get one on the cheap and rock on. |
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