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Old Sep 21, 2012, 02:23 PM
CodiJack is offline
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Joined Oct 2007
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150W from bulb?

I was looking into this thread but couldn't find an answer.
It's commonly know that if you want to use the "dsch+" function, you should use high power resistors
What stays in icharger manual is:

"But in the first 30 seconds of discharge startup, Pi can be reached 150W.
This characteristic is tend to active some resistance loads which shows a remarkably increase in resistance
value along with increase of the temperature, such as bulbs."

At the moment I'm doing some experiments (206B model) with bulbs and I'm succesful with currents up to 7A (2 car bulbs on 3s).
To the point.
During discharge phase current is rising slowly so also a filament of bulb is changing resistance also slowly (that is obvious).
During the discharge I permanently monitor voltage on the output leads so I can calculate momentary power of the icharger.
Power within mentioned 30s has never reached more then 50W and it looks to me is limited to this value.
Why the icharger can't deliver 150W within these 30s?
So, am I missing something or explenation in manual is not clear?
Regards,
JK
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Last edited by CodiJack; Sep 21, 2012 at 02:39 PM.
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