My laptop which is a Lenovo (IBM) T41 needs a 12V auto power adaptor.
I've been using a 200W inverter, but that thing likes to run my car
battery dead, not to mention that it is constantly screetching an
alarm as soon as the car battery is not fully charged. I have never
understood why it drains my battery when it's just charging the
computer battery, (with computer shut off), but it does.
Anyhow, I was told that I need to get a direct 12V charger for the
computer and eliminate that annoying inverter. I was shocked when I
saw the price for this charger at $140. (Almost as much as I paid for
the computer). Screw that, I already have a cig lighter socket and
the plug for the computer on a wire. All I need is the schematic to
step the voltage to whatever it needs to be. (which I still have to
find out). Anyone know where I might locate such a schematic online?
I'm sure it's a very simple circuit.
Thanks
I've been using a 200W inverter, but that thing likes to run my car
battery dead, not to mention that it is constantly screetching an
alarm as soon as the car battery is not fully charged. I have never
understood why it drains my battery when it's just charging the
computer battery, (with computer shut off), but it does.
Anyhow, I was told that I need to get a direct 12V charger for the
computer and eliminate that annoying inverter. I was shocked when I
saw the price for this charger at $140. (Almost as much as I paid for
the computer). Screw that, I already have a cig lighter socket and
the plug for the computer on a wire. All I need is the schematic to
step the voltage to whatever it needs to be. (which I still have to
find out). Anyone know where I might locate such a schematic online?
I'm sure it's a very simple circuit.
Thanks