[Elecraft] OT: 2017 Chevy Silverado 1500 power outlets

[Clay Autery]

Yes sir... I'm sure it is...  but one simply cannot make absolute
statements like the article (and OP) did without addressing REALITY. 
See my response to Vic... I answered in detail.

PS - I don't believe I have EVER seen an auto that powers all the car
systems WHILE the key is in Start position (and thus engaging the
starter relay, solenoid, and starter).
NEVER seen an auto made in the last 30 years or so with a SINGLE return
path to Batt (-).  If there is, I wouldn't own/use it until I fixed the
egregious engineering error.  <smile>

73,

______________________
Clay Autery, KY5G

On 6/27/2017 11:09 AM, Ron D'Eau Claire wrote:
> Clay, I believe it has to do with danger to your equipment should the
> connection between the battery and the chassis open. In that case all the
> current to all the automobile systems, from starter to lights to ignition,
> radio, etc., would flow through the ground path provided by the radio if it
> is connected directly to the negative battery terminal. Since that can be
> 100's of amperes when starting the engine, no radio is likely to survive. 
>
> 73, Ron AC7AC
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Clay Autery
> Sent: Tuesday, June 27, 2017 8:21 AM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] OT: 2017 Chevy Silverado 1500 power outlets
>
> Horse puckey!  I DEFY you to prove the physics OR math of that ridiculous
> statement.
>
> ______________________
> Clay Autery, KY5G
>
> On 6/27/2017 9:55 AM, donovanf at starpower.net wrote:
>> WARNING! 
>>
>>
>> For extremely important safety and fire prevention reasons reasons, no 
>> accessory should ever be connected directly to the negative terminal 
>> of an automotive battery . Just like when charging an automotive 
>> battery, the negative lead of a cable running directly to the battery 
>> should always connect to the engine block and never directly to the 
>> battery.
>>
>>
>> The positive lead must be fused where it connects to the battery. 
>>
>>
>> There's an excellent discussion here: 
>>
>> https://www.w8ji.com/negative_lead_to_battery.htm
>>
>>
>> 73
>> Frank
>> W3LPL