| Electronics > Repair |
| Change Battery - DashCam |
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| vidarr:
The battery of this dashcam is completely dead and I want to replace it with a battery that has a larger mAh, from the existing 200 mAh (3.7V) to a new 6000 mAh (3.7V). With the new battery installed, nothing happened; the cam won't even turn on (the battery is fully charged). Then I noticed the original battery had a small protection circuit attached to it. So, I soldered the circuit to the new battery and from the circuit soldered to the mainboard. Still nothing happens. Testing the battery again, it is fully charged and I tested on the circuit to mainboard side and it also shows as fully charged. For some reason, the cam does not want to recognize the battery (I also tried with a few other batteries with the same results). Also, with the battery installed and the cam plugged it, the battery icon on the screen shows as charging. The cam just doesn't want to turn on with a different battery. Does this require building a whole new circuit because of going from 200 to 6000 mAh? Creating a new circuit makes sense if I was changing the voltage, but I don't see why the existing circuit would fail just for having more mAh. Is this normal? If not, can I fix this? Thank You! |
| johansen:
Maybe the reason the dash cam doesn’t turn on is the same reason the battery was completely discharged… It’s dead Jim… |
| Whales:
Does it normally charge the batt when you plug in via USB? Have you tried that? Some devices don't turn on until supplied with charging interface current, then after that they stay in a "sleep" mode that allows them to wake using only battery power. EDIT: You had me worried that the soldered battery you show in the photo is supposed to be 6000mAh :D No that's just a different one you tried, the blue one is the 6000mAh :phew: |
| vidarr:
If I hook the battery back up the way it was originally, it does turn on and, yes, also the battery charges. But, because the battery is small, and old, the charge does not last very long --maybe 10 minutes at best. If I plug the camera in with any 5v charger (even USB to my laptop) and the battery is not installed, it still turns on. I tried several batteries, but cannot get it to turn on with any of them, unless it is also plugged in. Interestingly, the charging battery display on the screen shows that those batteries ARE charging though. This is bizarre. Thank You! |
| vidarr:
--- Quote from: johansen on July 03, 2024, 02:40:26 am --- It’s dead Jim… --- End quote --- Ahahaha. |
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