CTEK MXS 5 - teardown - Page 1
Forum section: electronics / general

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: October 27, 2011, 01:28:39 pm
content: Surprisingly they sanded the parts this time, wonder why did they didn't do it on 5 X more expensive MS 25000 which i teared down not long time ago... Anyway it looks like somebody just run it over with dremel but with little patience it can be read.

author: Bambur
author_rank: Regular Contributor
timestamp: November 04, 2011, 03:25:27 pm
content: I have had this great battery-charger for about a year now. It does do magic to used acid-lead batteries.What are chips you could identify? I cannot get the part numbers from your shots, sorry.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: November 07, 2011, 01:27:36 pm
content: Quote from: Bambur on November 04, 2011, 03:25:27 pmThey sanded them, but they use atmel

author: samgab
author_rank: Frequent Contributor
timestamp: November 08, 2011, 10:15:05 am
content: Wow, this is uncanny. I have the MSX 5.0, have had it for a few months and I love it. I was just connecting it to my car today and thinking about how it might be constructed internally, and mulling over whether anyone would have posted a teardown online, but I'm not game to do it myself... I want to keep that warranty! But came online here, and what do you know!Anyway, cheers for doing this and posting the pics. Much appreciated!

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: November 08, 2011, 12:18:12 pm
content: Quote from: samgab on November 08, 2011, 10:15:05 amNo problem, glad that you liked it.I also made a teardown of much more expensive unit XS 25 000 maybe you will like it too.

author: railrun
author_rank: Regular Contributor
timestamp: August 04, 2014, 08:02:07 am
content: *I know, it's an old topic, but I would like to ask if I have to remove this red plastic cap or just this three screws? And was it sealed?*Question answered4th screw under the capAnyways:Have you somewhere published the teardown of the (M?)XS 25000?Cheers

author: basilcedric
author_rank: Newbie
timestamp: November 11, 2017, 10:36:54 pm
content: Hi, I am new to this forum. The photos just miss what I need. My charger has a cooked resistor (R26) which sits just next to the transformer and is not shown in any of the photos. All the colored bands on the resistor are blackened so I can't work out what its value is. If anyone has one open can they help me out with the resistor colors please.

author: railrun
author_rank: Regular Contributor
timestamp: November 12, 2017, 10:47:09 pm
content: Quote from: basilcedric on November 11, 2017, 10:36:54 pmI don’t know if the CTEK 3600 has the same values, but here (https://www.mikrocontroller.net/topic/233788#5052315) I found a value of 10k.

author: basilcedric
author_rank: Newbie
timestamp: November 25, 2017, 03:09:33 am
content: Hi RailRu, Thanks for that. The first ring does look brown so it could be right but the 3600 is a lower current rating so I am not sure. Hopefully someone else will pull apart an MXS 5.

author: pocketscience
author_rank: Newbie
timestamp: September 24, 2020, 06:28:42 am
content: My MXS 5.0 also cooked the same resistor... everything else looks good but R26 is toast. Would love to know what it is if anyone has one of these..?

author: EB5AGV
author_rank: Contributor
timestamp: June 27, 2023, 02:25:27 pm
content: I know this is an old topic, but as I am working on my damaged MXS 5.0 and had also that resistor burnt but readable, I can say it is a 3.3 Ohm resistor. I have replaced it with a 2W one.BTW, I need to know what the SMDTRmarked component, just on the bottom part of the PCB, connected to that R26, is. I guess it should be a transient supressor, but don't know the voltage value nor if it is bidirectional. On my unit, seems shorted.Thanks!Jose