reyeuro
asked on
What does an Inverter Cable do in a laptop computer?
I have a compaq evo N400c that will not use any battery, therefore it is no longer a mobile laptop as it always needs to be tethered to an ac outlet with the ac adapter.... this laptop runs sweet on the ac adapter, but once you unplug it it dies in less then five minutes, when a battery (fully charged) is inserted, the icon still says AC Power, and as it does not really recognize the battery, it warns of low battery and shuts down. Someone is trying to sell me an inverter cable and claims this will solve my problem if I can have someone install it in my laptop. The cable is $6 and well worth it if in fact it will solve this problem, however, when I ran the problem initially on ee I was told the problem was with charging circuit built into the motherboard. I have two of these laptops that have this problem and two that work fine with the batteries, so I need to repair two and want to know if this sound like the right fix?
look here:
http://www.donrowe.com/inverters/inverter_faq.html
go down to the paragraph "what size inverter should I use" and you see "computer" listed there.
http://www.donrowe.com/inverters/inverter_faq.html
go down to the paragraph "what size inverter should I use" and you see "computer" listed there.
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You have several identical laptops. The broken ones (B) the working ones (W)
Take a charged battery from a W, insert it into B - does it work ? If not, it's nor the charging circuit that is damaged but the battery circuit completely.
Take a B's battery, insert it into a W and charge it - will W run with B's battery for a long time (1 hour) ?
If not, you batteries are damaged, not the charging circuit.
What will you get for 6$ ? Not an Inverter ? Do you have a picture of what you should buy ?
To me this sounds crap as of now.
Take a charged battery from a W, insert it into B - does it work ? If not, it's nor the charging circuit that is damaged but the battery circuit completely.
Take a B's battery, insert it into a W and charge it - will W run with B's battery for a long time (1 hour) ?
If not, you batteries are damaged, not the charging circuit.
What will you get for 6$ ? Not an Inverter ? Do you have a picture of what you should buy ?
To me this sounds crap as of now.
ASKER
The ground had broken loose and a little solder did the trick....thanks
IF they are suggesting that you use a blocking diode cable to create a dc current from an ac source, stay away!!!!!! This will result in a pulsed dc current NOT suitable for computers at all.