logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

Bosch C3 charger - No battery detected. Blue LED is on. Request

Kondziuu0 30519 10
Best answers LABEL_AI_GENERATED

Why won’t a Bosch C3 charger detect a 12 V battery with about 9.98 V on it, and how can I start charging it?

The charger may not detect the battery because it is too deeply discharged and the Bosch C3 may refuse to start below its required input voltage [#17024214][#17024239][#17024257] For 12 V batteries, electronic chargers often need roughly 7–10 V present before they begin charging, so 9.98 V can still be too low for this charger [#17024257][#17024239] The suggested workaround is to pre-charge the battery with a normal rectifier/charger first, then connect the Bosch C3 again [#17024246]
AI summary based on the discussion. May contain errors.
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
Report a violation of the law
Reply | New topic
  • #1 17024188
    Kondziuu0
    Level 6  
    Posts: 16
    Rate: 2
    Hello, I have a bosch c3, as if I bought a new one, I charged it with maybe 5 batteries, but today I wanted to connect and only the blue light on the battery is discharged does not want to detect it. I connected it to a second one in the car and it detected it. It bothered me and I dismantled the rectifier, which turns out a handyman was already sitting with it and did not put other capacitors or anything like that.
    Attachments:
    • Bosch C3 charger - No battery detected. Blue LED is on. Request 15AE4F29-D10D-4E0B-AFE9-05B612893442.jpeg (521.08 KB) You must be logged in to download this attachment.
    • Bosch C3 charger - No battery detected. Blue LED is on. Request 46C14CDE-D7B2-4FAE-A838-CBF67C65DA84.jpeg (917.79 KB) You must be logged in to download this attachment.
    • Bosch C3 charger - No battery detected. Blue LED is on. Request 76A485A8-E1B4-4E28-BEAD-E537D83A912B.jpeg (649.35 KB) You must be logged in to download this attachment.
    • Bosch C3 charger - No battery detected. Blue LED is on. Request 6CCC179B-C5D7-44DF-ABE2-B2080B446A91.jpeg (541.05 KB) You must be logged in to download this attachment.
  • ADVERTISEMENT
  • #2 17024203
    ^ToM^
    Level 42  
    Posts: 9051
    Help: 495
    Rate: 2939
    He is not new. Production date from 2012. So maybe it would be better to make a complaint?

    Best regards!
  • #3 17024205
    bearq
    Level 39  
    Posts: 4888
    Help: 414
    Rate: 1612
    Such chargers do not detect deeply discharged batteries, how much V does he have?
  • ADVERTISEMENT
  • #4 17024208
    Kondziuu0
    Level 6  
    Posts: 16
    Rate: 2
    I bought it as new, but from 5 years ago, so sorry I didn't write it
  • ADVERTISEMENT
  • #5 17024214
    pdemski
    Level 20  
    Posts: 248
    Help: 36
    Rate: 71
    Most switched-mode rectifiers, if they don't get the right voltage from the battery, won't start charging it, if you've had a heavily or completely discharged battery, it may not have detected you.
  • #6 17024223
    Kondziuu0
    Level 6  
    Posts: 16
    Rate: 2
    Aku on the meter showed 9.98V so it is possible that the rectifier will not raise it below 10V as it is?
  • ADVERTISEMENT
  • #7 17024239
    pdemski
    Level 20  
    Posts: 248
    Help: 36
    Rate: 71
    Kondziuu0 wrote:
    Aku on the meter showed 9.98V so it is possible that the rectifier will not raise it below 10V as it is?


    Exactly.
  • #8 17024246
    bearq
    Level 39  
    Posts: 4888
    Help: 414
    Rate: 1612
    Charge it with a normal rectifier and connect to it later.
  • #9 17024257
    helmud7543
    Level 43  
    Posts: 12626
    Help: 1216
    Rate: 1564
    In practice, the electronic ones require a voltage from 7 to 10 V at 12 V battery, so it may be.
  • #10 17024313
    Jawi_P
    Level 36  
    Posts: 3258
    Help: 260
    Rate: 714
    pdemski wrote:
    Most inductive rectifiers

    So to call a rectifier they are all "inductive".
    Either the transformer, which is the inductive element, or the inductive elements of the converter. ;)
  • #11 17747728
    paszczakq
    Level 27  
    Posts: 1019
    Help: 48
    Rate: 204
    I'm digging up a bit. Does anyone know the voltage of the zener diode Z1 visible in these photos? I got a copy and someone put in the usual 1n4148.
Reply | New topic
Report a violation of the law

Topic summary

LABEL_AI_GENERATED
The Bosch C3 charger is experiencing issues detecting a battery, indicated by a blue LED light. The user reports that the charger worked with other batteries but failed to detect one with a voltage reading of 9.98V. Responses suggest that the charger may not recognize deeply discharged batteries, typically requiring a minimum voltage of 7 to 10V to initiate charging. Recommendations include using a standard rectifier to charge the battery to a sufficient voltage before reconnecting it to the Bosch C3 charger. Additionally, concerns were raised about the rectifier's condition, as it had been previously tampered with.
AI summary based on the discussion. May contain errors.
ADVERTISEMENT