600w inverter - how long can i charge laptop before i should run the engine?
Submitted: Friday, Jun 08, 2012 at 09:11
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Eager2CAuswithdog
The title pretty much says it all. I have a normal car battery and a 5 yr old dell laptop. The adaptor says 90w but im not sure how meaningful that is as the 300w inverter was not enough power.
So yeah, just wondering how long i can leave the laptop charging straight from the battery without draining it or lessening its life expectancy.
Thanks!!
Reply By: Member - Michael P (QLD) - Friday, Jun 08, 2012 at 17:40
Friday, Jun 08, 2012 at 17:40
Hi,
Just be aware that with a Dell laptop, You may not be able to use a generic brand 12v charger.
I have a Latitude D830 a generic would not work. Dell have their own brand which I now use without any problems.
Your model may be different I am quoting
mine and what I was told by the Texpert that I use.
By the way I have successfully used a 300w inverter.
Regards Mike.
.
AnswerID:
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Reply By: oldtrack123 - Sunday, Jun 10, 2012 at 10:48
Sunday, Jun 10, 2012 at 10:48
HI Eager
If your 300W inverter will not run the battery charger , the inverter type is possibly the problem ,not the WATTs capacity
Depending on the lap top,it may not be possible to charge DIRECT from the battery, most likely may need a more efficient method such as a voltage converter as mentioned by others
The voltage required should be on the lap top
Peter
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