For those who are considering between Bosch C7 vs CTEK, there's a 6 years old post on a russian car sites - https://www.drive2.ru/l/2865653/
Read it with google translate turned on
It was mentioned that Bosch doesn't fully charge the batteries.
Based on my understanding on what was being translated, he used Bosch C7 to charge his battery, when Bosch C7 went into trickle charge mode (indicating battery is well charged), he then proceed to connect the battery to CTEK charger. The CTEK charger indicated that the charge on the battery is no more than 80% and continue charging process.
What's your opinion on this? Bosch is trying to play safe?
Meanwhile, I suspect my Bosch C7 Mode button microswitch is not working anymore. Currently stuck in mode 1 only, it'll charge just fine. Just that nothing happens when I press the Mode button, meaning i can't change the mode anymore. Similar issue on C3 reported as well.
There's a guide on how to fix it but will need soldering skill - https://www.instructables.com/Repair-Your-B...attery-Charger/
This post has been edited by evilhomura89: Dec 21 2020, 08:59 PM
Battery brand that has lasted 4 years or more.