Test/Review of BlitzWolf 48W 4-port smart car charger C1

Very nice review as always HKJ.
Too bad it doesn’t have overload protection

It do have overload protection, but only a common one.

You mention that this usb charger can deliver up to 10A on single port.
when it happen? And is this usb charger got a fuse?

Whoa. Thanks as usual man. Already ordered 3 of those. Not sure what 10A to a single USB would mean ….

Can it fry a battery or something?

You have 3 cars? I have one on the way too.

Lol no. 1 for me and 2 for friends :stuck_out_tongue: I wish I had at least 2 cars though!

Yes, the overload protection is at 10A. I did not spot any fuses in it.

The 10A is only a problem if you have a defective cable or device, then you usb cable might melt and in extreme conditions catch fire.

Thanks for the info HKJ.
This charger In my wishlist :slight_smile:

I keep wondering, how easy would it be to add the 3A protection to each port? Is there room in the charger as it is?

It would depend on what type of chip you could find for the job. In some chargers it is made with resistors, transistors and a OpAmp and it do use a lot of space and produces some heat. I have seen one charger where they had a single protection chip for each output.

This could be dangerous, if you charge something in the car and forger about it. Could also drain your car battery fairly quickly at 10A.

The charger is not drawing 10A from you car battery, "only" about 4.5A. This will also drain you car battery if you have connected something that continues to use power and the socket has power when the ignition is off.

Thanks for the review HKJ

The XTAR VC4 Universal will be safe using this car charger?

Should 2 D batteries or 18650s be able to charge with the engine off? How many batteries should a car battery be able to charge without running the engine?

Yes.

It is best not to discharge a car battery below 50%, with that in mind a simple guide is not to charge more Ah, than the car battery is rated. I.e. with a 60Ah battery, do not charge more than 60000mAh LiIon cells. I am a bit chicken and would stay well below that value.

It is nice to have some chargers I can trust HKJ, until you started reviewing and discussing them, I just assumed they were all whatever they said they were, and all pretty much made the same/equal, and all more or less, equally safe.

Unfortunately this charger is making FM radio interference in 4 cars and 3 different chargers I tested.
As long as you are close to transmitter there is no problem. Since I travel a lot it is annoying.
Mike

Mike, I’ve got a bit of knowledge of dashcams, their PS’s, and RF interference and this is similar. Some cures have been effected with shielded USB cables and as you’d know being a Ham distance from antennas and other RF entry points should be as big as possible from devices emitting RFI. My old NiMh charger has to stay across the room from my radios but at least it’s not in the farthest room!

73
Phil

I know RFI is an issue HKJ can’t test for as he’s said his whole environment is noisy with RFI.

I’d sure welcome more reports from users. I’m always tracking down electronic noise, just by carrying a little AM transistor radio around.
It’s amazing how noisy the new LED bulbs and any small import electronics are.

My hunch is the FCC labels on most of that stuff are just fakes with no testing done at all.

very nice. nice to read it. you explain it very well. its really call a good charger which having a 3A current. your post also helpful for a project work. thanks for share it. is it safe for car charging? https://car-gears.com/