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Junsi iCharger 3010B Non-Working Parts Bundle - DOES NOT WORK. PARTS ONLY

$ 10.03

Availability: 100 in stock
  • Compatible Chemical Composition: NiMh
  • Brand: Junsi
  • All returns accepted: ReturnsNotAccepted
  • Condition: Used
  • Country Of Manufacture: China, People's Republic of
  • Harmonized System Code: 9503.00.00.90
  • MPN: JUN3010B

    Description

    This charger's faults ran through this sequence:
    1) Accidental reverse polarity at about 32 volts on the output. From then on, it would restart itself whenever you started an operation - at "battery check, please wait" it would restart.
    2) I stole its power regulator IC (U5) for repairing my iCharger 208b, which was successful and works to this day.
    3) I learned with the help of a forum post what IC was used for U5 (its markings were ground off). I bought a copy of that chip and was successful in making it power up again.
    4) I discovered that U7 was getting hot when no operation was active, so I tested it and found it was shorted, likely the fault of incident (1). I snapped it off to replace later, and when I tested it, it would now function mostly normal - would discharge and charge - but would only charge I'd input voltage was lower than output (boost mode).
    5) when starting with input voltage > output voltage, it would say "connection break" and not operate. However, if input voltage starts below & increases above output while it's operating, it would say "control error" and stop. However, the second time I tried this... it fried the charger again.
    This time, there was no coming back - I couldn't find the problem.
    So, the parts are yours. :) Maybe to fix another iCharger, who knows.
    Just DO NOT plug the input into a beefy power supply at first .. Unless you like smoke and fireworks. This thing is quite unhappy with life and consumes near a flat short (while having electronic seizures) when activated. Its parts may still be useful if you don't blow it up first.