unexpected teardown time: My roommate's imini vape exploded and she asked if I could fix it.
The answer, it turns out, is "no"
The answer, it turns out, is "no"
So the vape cartridge plus into the other side of this connector.
Turns out this is a "510 battery connector"
You'll see it only has one wire connecting to it right now: that's one of the main reasons it doesn't work
Turns out this is a "510 battery connector"
You'll see it only has one wire connecting to it right now: that's one of the main reasons it doesn't work
This PCB at the end is the only smarts. It's got a button on one side, some LEDs, and a micro-USB plug.
Flipping it over, we've got some LEDs, the microUSB connector, a button, a 6-pin IC, and G/V/O+ connectors.
It looks like V goes to the battery+, G goes to the battery - and one pin on the 510, and O+ goes to the other pin.
It looks like V goes to the battery+, G goes to the battery - and one pin on the 510, and O+ goes to the other pin.
Speaking of the battery, it says HK 13350. That's a cylindrical lithium-ion battery, and "13350" means it's 50mm long, and 13.3mm in diameter.
3.7V, and 1.67 watt-hours. (which'd be 451 mAh)
3.7V, and 1.67 watt-hours. (which'd be 451 mAh)
So, time to pull out the USB microscope for the chips and such.
That one on the top is an A1LA MK... which is a mosfet.
Probably used to control the main power through the 510 connector.
That one on the top is an A1LA MK... which is a mosfet.
Probably used to control the main power through the 510 connector.
This other 6-pin IC is a 57bD. I can't be sure, but there's a couple dual-transistors in that package with similar names, so probably a transistor.
A grimy one. ewwww
A grimy one. ewwww
This here is a multi-color LED.
I like how you can see the tiny wires between the contacts.
I think this is two colors?
I like how you can see the tiny wires between the contacts.
I think this is two colors?