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  1. S

    kWeld - "Next level" DIY battery spot welder

    First of all I made a beginner's mistake... And the temptation of high power :D New diodes SLD8S28A is waiting for second attempt to repair kWeld (I buy 4 pieces, just in case) :) Now I waiting for SMDJ24A from Farnell (you recommend this because lack of SMDJ28A). On first attempt I replace...
  2. S

    kWeld - "Next level" DIY battery spot welder

    Hi! I am still struggling with the repair of the kWeld ... I am looking for a replacement diode. Will the one on the right (SM8S26A) be a good replacement for the original one SMDJ28A?
  3. S

    kWeld - "Next level" DIY battery spot welder

    You're right. There is a high chance that the TVS SLD8S28A is also damaged. I think SMDJ24A will be ok, my battery full chage voltage is 6 x 4.2V = 25.2V, this model can support 26.7V, there will be ok :) Either way I'm not going to use the kWeld on a full charged battery. I don't want to cause...
  4. S

    kWeld - "Next level" DIY battery spot welder

    Hi! Today is good day to burn... kWeld ;( I find that I burn Littelfuse SMDJ28A diode and one place. I want replace by myself... I can't find SMDJ28A to buy local, but I find only (Transil 33V 3kW SMDJ33A DO214AB / LITTELFUSE SMDJ33A-LF). Can you tell me if this diode will be OK? Someone had a...
  5. S

    KT LCD3 firmware -- Flexible OpenSource firmware for Kunteng KT-LCD3

    China man tell me that I should buy another controller... They don't ask me what controller I have... :D This is what he offer me... of course this product is from him store :D...
  6. S

    KT LCD3 firmware -- Flexible OpenSource firmware for Kunteng KT-LCD3

    60Volt version looks like that inside :wink:
  7. S

    KT LCD3 firmware -- Flexible OpenSource firmware for Kunteng KT-LCD3

    Thank you guys for your help. In time I buy another KT-LCD3 (60V version) from China and there is another strange problem. When I want to turn ON (keep power 2 sek) LCD show zero parameters... and then I release button, LCD immediately turn off. I buy KT-LCD3 on this site...
  8. S

    KT LCD3 firmware -- Flexible OpenSource firmware for Kunteng KT-LCD3

    Hi everyone! I burn my KT LCD3 :D :mrgreen: I connect 48V version to 14s battery (about 58V)... Yes, I'm stupid... When I look inside, I realised that only transistor is blow up (A1013). This is very cheap transistior for about 1$ on aliexpress... but I want to change this transistor to be...
  9. S

    Passion eBike 6 FET Kunteng Controller (S06S)

    Hi! I have the same controler for to my e-bike. I have some problem. My battery is 14s (42-59V) this controller work up to 48V. When I connect then I realized that ~58V burn some parts... good news, there only one element blow up - transistor (SA1013). Can you tell me what model transistor is...
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