[tcb] Re: Battery Charging With Fuel Injection
- From: kelly dosch <kellydosch@xxxxxxxxx>
- To: tcb@xxxxxxxxxxxxx
- Date: Sun, 5 Jun 2011 21:52:20 -0700 (PDT)
HA! .01 amps. My ass probably generates more than that instatic electricity.
Yeah, I'm probably good.
Thanks again.
________________________________
From: David Schwarze <dschwarze@xxxxxxxxxx>
To: tcb@xxxxxxxxxxxxx
Sent: Sun, June 5, 2011 11:38:21 PM
Subject: [tcb] Re: Battery Charging With Fuel Injection
You're welcome - it's the least I could do for the guy who tracks down all
of the best LED lights for us! Here's some simple power numbers for you.
Your alternator puts out on the order of 50 amps while a solar trickle
charger puts out on the order of 0.1 amps, or 1/500th of the power of the
alternator. So yes, I would say that it is not strong enough to hurt
anything.
-David
On 6/5/2011 11:02 PM, kelly dosch wrote:
Well that makes sense. Thank you for your time and your well thought
out answer.
> I was hoping somebody might say a solar trickle charger wouldn't be
>strong enough to hurt anything, but I don't know squat about
>electricity. I swear, the more I study it the more complex and
>confusing
>it becomes. Not to mention, it can be fairly mean when handled wrong.
>
> Thanks again.
>
>
>
>
>
>
________________________________
From: David Schwarze <dschwarze@xxxxxxxxxx>
>To: tcb@xxxxxxxxxxxxx
>Sent: Sun, June 5, 2011 9:55:49 PM
>Subject: [tcb] Re: Battery Charging With Fuel Injection
>
>David does in fact drive a fuel injected bus but it doesn't have a
>computer (EMP-proof, oh wow!). However, David knows enough about
>electronics to realize that a solar trickle charger is not going
>to
>affect any part of the FI VW's electrical system to the extent
>that
>an alternator would and therefore should be completely safe. This
>is assuming that the charger is regulated and will not raise the
>battery voltage above what the alternator would (about 14V).
>
>Keep in mind that what the manual says is by necessity painting
>with
>a very broad brush. Would I have a gas station hook up their
>100-amp wall-powered quick charger to my FI bus's battery without
>disconnecting the cable first? No way in hell. But a solar
>trickle
>charger? Should be no problem at all. Also keep in mind that the
>VW engineers were a pretty smart bunch and they were not going to
>design a computer for an automobile that was so fragile that it
>can
>be damaged by really small variations in voltage. If that were
>not
>true you would not have 30+ year old busses running around with
>their original electronics. Give them some credit.
>
>Of course I am just one person with one opinion, just like Bill
>Gmail. And I only stated it because I was asked. :-)
>
>-David
>
>On 6/5/2011 4:47 PM, Bill Gmail wrote:
>Does David drive a fuel injected bus? I do and will follow
>the
>factory recommendation. No chargers for me unless the battery
>is
>disconnected per the manual.
>>
>>
>>
>>
>>
>>
>>
>>On Jun 5, 2011, at 2:42 PM, David Schwarze <dschwarze@xxxxxxxxxx>
>>
>>wrote:
>>
>>
>>I don't want to guarantee that a solar charger will not
>>damage
>>your computer, but if it were my bus I would have
>>absolutely
>>no qualms about it, even if it were a higher-power charger.
>> I
>>have charged many batteries while installed in vehicles
>>with
>>computers and have never had a problem.
>>>
>>>-David
>>>
>>>On 6/5/2011 12:06 PM, kelly dosch wrote:
>>>
>>>>
>>>>
>>>> It says in my manual
>>>> to
>>>>disconnect the battery
>>>>before charging or it
>>>>will
>>>>fry the Fuel Injection
>>>>computer or something.
>>>>
>>>> Does anybody know if
>>>> that
>>>>would be true even with
>>>>a
>>>>tiny solar trickle
>>>>charger?
>>>>
>>>>
>>>>
>>>>
>>>>
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