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Medical battery / BQ80201 / BQ8050 Firmware

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tracker135n9
(@tracker135n9)
Noble Member Customer

 You have selected bq8050 plugin still thinking it has bq8050 firmware, thats why it throws error. 

 As was already explained bq80201 is older generation chip and its firmware is different from newer bq8050 chips. 

It has different size, different port maps, different layouts. 

Handling bq80201 chip by bq8050 plugin is not recommended and could brick the chip. 

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Posted : 14/02/2026 11:11 am
Battery works
(@daivid)
Estimable Member Customer

@tracker135n9 

 

i do understand your words, thanks for your perfect explanation.

 

If you are agree i do this risk to try my best to see the result.

 

I don’t have bq8050 and 80201 layout to check some points.

 

could you share to me i will check . 

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Topic starter Posted : 14/02/2026 6:31 pm
tracker135n9
(@tracker135n9)
Noble Member Customer

 Do you mean pinout ? 

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Posted : 14/02/2026 7:46 pm
loliconic
(@loliconic)
Member Moderator

@daivid 

I see you have output current. Have you tried to charge the battery in the charge tab?

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Posted : 16/02/2026 8:53 am
Battery works
(@daivid)
Estimable Member Customer

@tracker135n9 

Yes.

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Topic starter Posted : 17/02/2026 5:16 pm
Battery works
(@daivid)
Estimable Member Customer

@loliconic 

I have good News,

 

sThe econd Fuse witch will be used for the Positive output, was blown, and after soldering,g I have output.

 

Still battery is locked.

 

I reset the cycle count and added more capacity by using BQ8030 firmware on Frimware tabe.

 

I do have output, but charging is going on only at 0.7 amp, and discharging is not possible.

image
image
image
image

 

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Topic starter Posted : 17/02/2026 5:25 pm
tracker135n9
(@tracker135n9)
Noble Member Customer

 0.7 amp = 700mA 

 on the picture discharge current is just -7mA 

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Posted : 17/02/2026 5:57 pm
Battery works
(@daivid)
Estimable Member Customer

@tracker135n9 

yes it’s only -7mah

 

what do you think ?

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Topic starter Posted : 18/02/2026 10:08 am
Battery works
(@daivid)
Estimable Member Customer

@tracker135n9 

 

thanks, i will send it tomorrow. 

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Topic starter Posted : 18/02/2026 2:55 pm
tracker135n9
(@tracker135n9)
Noble Member Customer

 Also press this button and paste a picture. 

IMG 20260219 120837

 

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Posted : 19/02/2026 10:09 am
Battery works
(@daivid)
Estimable Member Customer

@tracker135n9 

image

 

to wich eamil i have to send the EEPROM?

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Topic starter Posted : 19/02/2026 1:56 pm
tracker135n9
(@tracker135n9)
Noble Member Customer

 EEPROM is corrupted. 

 Check the flags. 

IMG 20260219 160439

 INIT flag is missing, so firmware was not initialized. 

 

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Posted : 19/02/2026 2:15 pm
tracker135n9
(@tracker135n9)
Noble Member Customer

 Have you saved the very first eeprom before any changes were done by applying bq8030 or bq8050 plugins ? 

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Posted : 19/02/2026 2:17 pm
Battery works
(@daivid)
Estimable Member Customer

@tracker135n9 

 

Yes, I have two batteries.

 

The first battery was working well, so I saved it before doing anything.

 

I saved the EEPROM by selecting BQ8050.

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Topic starter Posted : 19/02/2026 5:54 pm
tracker135n9
(@tracker135n9)
Noble Member Customer

 Connect good battery, press ReadAllOnce button. Press BatteryStatus button. Paste picture. 

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Posted : 19/02/2026 6:05 pm
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