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EEVblog => EEVblog Specific => Topic started by: EEVblog on November 03, 2021, 11:22:07 pm

Title: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: EEVblog on November 03, 2021, 11:22:07 pm
Teardown of a Cadex C7000 battery analyser.

https://www.youtube.com/watch?v=7JAuXQWvGlg (https://www.youtube.com/watch?v=7JAuXQWvGlg)
Title: Re: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: thm_w on November 04, 2021, 04:37:04 am
Dave, curious where this came from, since you said it was 110V I assume it was shipped from NA?
They still list the C7000 on their website: https://www.cadex.com/products (https://www.cadex.com/products)

Title: Re: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: EEVblog on November 04, 2021, 08:22:16 am
Quote from: thm_w on November 04, 2021, 04:37:04 am
Dave, curious where this came from, since you said it was 110V I assume it was shipped from NA?
They still list the C7000 on their website: https://www.cadex.com/products (https://www.cadex.com/products)

Yes, US import.
Title: Re: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: TheSteve on November 04, 2021, 04:38:44 pm
Back in the 90's all of the serious cellular phone shops in my area had a Cadex unit to test batteries. They were pretty useful, especially in the NiCAD and NiMH days. They were also quite common in the 2-way radio rental and service dealers.
Title: Re: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: Kleinstein on November 04, 2021, 05:04:56 pm
Chances are there is a 10 bit ADC inside the PIC.
Title: Re: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: Twoflower on November 04, 2021, 07:04:38 pm
Nice label there.  :-DD
Title: Re: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: hli on November 04, 2021, 07:51:40 pm
Just a guess: 4 of the resistors are used as load for discharging, and the remaining 3 are used during charging, to balance multi-level cells.
Title: Re: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: markus on November 04, 2021, 08:23:40 pm
Set a C7000 battery analyzer for stand-alone use

1 Press the MENU key on the C7000 battery analyzer.
2 Press ▲ or ▼ to scroll to SYSTEM SETUP (on the analyzer display screen), and then press ENTER.
3 Press ▲ or ▼ to scroll to OUTPUT DEVICES, and then press ENTER.
4 Press ▲ or ▼ to scroll to SERIAL PORT DEVICE, and then press ENTER.
5 Press ▲ or ▼ to scroll to any setting other than BATSHOP, and then press ENTER.
6 Press ENTER again to confirm your selection.
7 Press ESC twice to return to the global display.

The latest C7000 firmware V3.53 can be found here http://www.ko4bb.com/getsimple/index.php?id=download&file=06_Misc_Test_Equipment/Cadex_C7000_Battery_Analyzer_EPROM_3.53.BIN (http://www.ko4bb.com/getsimple/index.php?id=download&file=06_Misc_Test_Equipment/Cadex_C7000_Battery_Analyzer_EPROM_3.53.BIN)
Title: Re: EEVblog 1434 - Cadex C7000 Battery Analyser Teardown
Post by: faraday on November 10, 2021, 11:50:07 am
I have newer version c7400-c,  need firmware 3.xx does anybody have?