Roomba 563: (battery-voltage-ok?) FAIL

The very latest news and updates for the iRobot Roomba robotic vacuum, the Scooba Robotic Washer and the Dirt Dog workshop sweeper. All discussion and troubleshooting questions go here.

Roomba 563: (battery-voltage-ok?) FAIL

Postby martin.schwarzinger2 » February 19th, 2019, 4:34 pm

Hello,
Unfortunately I got an old Roomba 563 with a battery problem.
At first I thought that just the battery died, but when I received the replacement I noticed that things are stil the same.

I put my roomba on the charger and I can see in the serial debug output that the battery is charging:
Code: Select all
bat:   min 2  sec 46  mV 306  mA 305  tenths-deg-C 245  mAH 7  state 3


But after the charging is done, and when I then press the cleaning button, or move the roomba away from the dock, immedialty the message "Please charge roomba" appears....

I then started the auto self-test the the roomba as enough power to perform all the tests easily - so the battery is obviously charged!!

In the selfest I noticed, the following:
Code: Select all
SUMMARY: (battery-voltage-ok?) FAIL
SUMMARY: (battery-temperature-ok?) untested
SUMMARY: (baseline-current-ok?) PASS   mA -243  min -270  max -220  mV 278  degrees-C 22


So obviously something is wrong with the battery voltage sensor!!!

Does anyone has an idea where I could start analysing the circuite to find the faulty part?
(In another thread I noticed that it might could be U3 MC34036 ... could that be the root cause for such a problem?)

Any hint that could push me in the right direction would be really great!
Thank you so much in advance for your help!

BR
Martin
martin.schwarzinger2
 
Posts: 2
Joined: February 19th, 2019, 4:19 pm

Re: Roomba 563: (battery-voltage-ok?) FAIL

Postby martin.schwarzinger2 » February 21st, 2019, 8:30 am

Maybe someone has a schematic of the PCB, where I can dig into it by myself?
(Currently I've no clue, in which area of the PCB the battery sensor could be located, which makes things quite difficult)

I would be really greateful for any kind of help here!
BR
Martin
martin.schwarzinger2
 
Posts: 2
Joined: February 19th, 2019, 4:19 pm

Re: Roomba 563: (battery-voltage-ok?) FAIL

Postby vic7767 » February 21st, 2019, 11:58 am

Read through this post to discover what you seek: viewtopic.php?f=1&t=16489
Roomba and Neato Mods, come visit: http://www.vic7767.com/
User avatar
vic7767
Robot Master
 
Posts: 14962
Joined: January 14th, 2006, 8:31 pm
Location: Haughton Louisiana - USA


Return to iRobot Roomba and Scooba Chat

Who is online

Users browsing this forum: johnnyh, kersian, lanchez, someoneclever and 374 guests