Hi, I have done this test many times on my own cars especially my classic Jaguars. You forgott to mention a very important aspect of this test that is the resistance (starter resistance) because this is much more interesting as far as system status is concerned since it tells the condition of the wireing. Customers will be much more impressed with that than Voltage because most mechanics have no idea what it tells. With, as in this case, 11mOhms the wireing is in great shape but on my 1964 Jaguar MK2 I had 30mOhms and it was enough to stop the starter motor from turning. Yes, just 30 Milliohms (don’t forget several hundred Amps are in the game). At that time I was new to car electrics and first changed the battery (the first mistake everyone makes) ..... no improvement. Next came a new starter (second, more expensive, mistake) ..... second start attempt in front of a crowd of people ...... no start, but that day I just received my new Pico and did the starter/battery test and all it was was a corroded ground wire connecting the engine with the chassis. Made a new one for a few bucks and the resistance dropped to 13mOhms (under 20mOhms is mostly ok). Great strong turning starter since. I run this 30 second test at least once a year on all of my cars before winter and since then we have never had a no-start again. Btw, for winter prep the actual cold cranking should not be below 65-70% else you might not get through the cold season. If you can show a customer that by identifying and replacing a bad 10 U$ cable that you saved him from wasting a good battery or even a Starter motor, then he will be more impressed with you then giving him a printed piece of paper with a funny graph on it. The Pico is one of the best addition in my hobby garage but don’t forget unless you spend the time to learn and interpret what it finds, it will just become another useless gadget. Don’t make the typical mechanics mistake to memorize just how certain graphs can look, learn to interpret the data and you will never want to miss the Pico in your shop. Greetings Bernhard
Also the Cranking Amps require the correct setting for the measured method e.g. SAE or EN or DIN which would make a big difference in the outcome. Yes usually new batteries are a bit higher than rated but 800 for a 700 CCA seems unusually high. I could not make it out in the video what type measurement rating was used from the battery manufacturer but it should be somewhere on the battery-label. In the Picoscope program SAE was selected. Greetings Bernhard
Antonio Claudio Michael Good morning Antonio, normally it is not that important. If it shows better than rated I would say, fine, but there is one thing with the Pico (or all Test equippment) and Autoelectrics in general: if a measurement result is odd then check the setup/connections/and the software settings again. Trust me, with this I am the expert. If there is a mistake possible ..... I have made it already 🤣. As Scanner Danner always says, first check Power and Ground and how right he is and as I mentioned in another post, always learn and understand the data: why does a scan look the way he does, what causes such a display? Is it possible to show a negative Voltage where you should have the Voltage pulled to just zero (not negative) then check your connections. So if a measurement is out of whack it is probably wrong. Go ahead and start from scratch. Happy measuring, Bernhard
Hi, I have done this test many times on my own cars especially my classic Jaguars.
You forgott to mention a very important aspect of this test that is the resistance (starter resistance) because this is much more interesting as far as system status is concerned since it tells the condition of the wireing. Customers will be much more impressed with that than Voltage because most mechanics have no idea what it tells. With, as in this case, 11mOhms the wireing is in great shape but on my 1964 Jaguar MK2 I had 30mOhms and it was enough to stop the starter motor from turning. Yes, just 30 Milliohms (don’t forget several hundred Amps are in the game).
At that time I was new to car electrics and first changed the battery (the first mistake everyone makes) ..... no improvement. Next came a new starter (second, more expensive, mistake) ..... second start attempt in front of a crowd of people ...... no start, but that day I just received my new Pico and did the starter/battery test and all it was was a corroded ground wire connecting the engine with the chassis. Made a new one for a few bucks and the resistance dropped to 13mOhms (under 20mOhms is mostly ok). Great strong turning starter since.
I run this 30 second test at least once a year on all of my cars before winter and since then we have never had a no-start again. Btw, for winter prep the actual cold cranking should not be below 65-70% else you might not get through the cold season.
If you can show a customer that by identifying and replacing a bad 10 U$ cable that you saved him from wasting a good battery or even a Starter motor, then he will be more impressed with you then giving him a printed piece of paper with a funny graph on it.
The Pico is one of the best addition in my hobby garage but don’t forget unless you spend the time to learn and interpret what it finds, it will just become another useless gadget. Don’t make the typical mechanics mistake to memorize just how certain graphs can look, learn to interpret the data and you will never want to miss the Pico in your shop.
Greetings Bernhard
Very wise man, appreciate the feedback. I pinned your comment so others can learn from it also. Thanks for watching and giving a valuable reply.
Great video brother
I had no idea that the scope had this function that's awesome. A guy probably couldn't do this on a diesel with the two batteries I suppose?
Probably not in a preset test, I do know in regular labscope mode there is a 24 volt starting and charging option so not sure about that.
Yes just test each battery individually so run test twice
What pico scope are you using what model
Antonio Claudio Michael this one is the 4225
@@helmandollarautodiagnostic6519 I have the pp923 system 4 channel also known as the 4425 PQ039 master kit
Antonio Claudio Michael very nice man, I really thought about the 4 channel.
@@helmandollarautodiagnostic6519 the 4 channel is amazing but your 2 channel does the job
Yea the 4 channel would be awesome to have. Your right the 2 channel gets the job done. Maybe some day I’ll get the 4 channel.
Pico says 801 CCA on a 700 CCA Battery that's good
To be fair it was a brand new battery that I had just installed so I’m sure after some time the cca will come down some.
@@helmandollarautodiagnostic6519 that explains why is higher then the sticker rating great video
Also the Cranking Amps require the correct setting for the measured method e.g. SAE or EN or DIN which would make a big difference in the outcome. Yes usually new batteries are a bit higher than rated but 800 for a 700 CCA seems unusually high. I could not make it out in the video what type measurement rating was used from the battery manufacturer but it should be somewhere on the battery-label. In the Picoscope program SAE was selected.
Greetings Bernhard
@@bernhardlist9359 i do understand its weirdly high compared to the sticker rating and your last vomment some great information
Antonio Claudio Michael
Good morning Antonio, normally it is not that important. If it shows better than rated I would say, fine, but there is one thing with the Pico (or all Test equippment) and Autoelectrics in general: if a measurement result is odd then check the setup/connections/and the software settings again.
Trust me, with this I am the expert. If there is a mistake possible ..... I have made it already 🤣. As Scanner Danner always says, first check Power and Ground and how right he is and as I mentioned in another post, always learn and understand the data: why does a scan look the way he does, what causes such a display? Is it possible to show a negative Voltage where you should have the Voltage pulled to just zero (not negative) then check your connections. So if a measurement is out of whack it is probably wrong. Go ahead and start from scratch.
Happy measuring, Bernhard