Sainsonic GT-3 car charger (AD-10)

So, speaking of ham radio and handhelds,  Sainsonic GT-3 is one of the nicest looking Baofeng/Pofung UV-5R clones out there, and mark II comes with a nicer whip antenna and does a remarkably good job for almost no money at all.

I feel though that I should warn people about the included AD-10 car charger. It is a cigarette lighter plug with a DC connector to attach to the charger stand. The charger requires 10V and gets it fairly cleanly from the wall wart, but the AD-10 claims to accept 12-24V and output 12V. This sounds a bit suspicious to me. Shouldn’t it be 10V to match the charger? Is it a misprint? How can it regulate 12V to 12V with no voltage drop?

The short answer? It DOES NOT!

It just shoves the ~14V (normal for a running car) or more into your charger stand and hopes for the best. Now, best case, this might work OK but it would stress the regulator in the charger 40% more than it is designed for and this should cause a significant problem with heat dissipation. I do not believe the charger would survive the 24V from a truck battery without shutting itself down or burning up (depending on the design).

Beware of the Sainsonic AD-10 car charger and don’t try to contact them with a complaint. There are reports all over the web that they are rude and arrogant and you won’t get any help there. 

I’ll let the picture make my case. 

Cheers and 73 from SA6AYN

One Reply to “Sainsonic GT-3 car charger (AD-10)”

  1. Mine started smelling like burning electronics after a couple of minutes so I disconnected it with no way to charge it in the car. Maybe I should add a few diodes to drop the voltage or resistor, I’m not sure. Ridiculous in any case.

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