Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hi,
I have a pair of WH-10000MX2 bluetooth headphones with a strange problem. Connecting the charging cable causes the headphones to no longer turn on when pressing the power button.
I thought I had 'fixed' this when I took them apart and disconnected the battery for 15 minutes and found as...
Hi!
Im building a car and have this Volvo Alternator 180A layin around that I think it would suite my needs fine.
Though it have this LIN -ECU controlled regulator.
Im not sure if this could be solved some how.
Change the regulator to none LIN?
Let it run in fail safe mode with or without a...
Hi... I'm need to put a wireless charging receiver into a old device... the problem is that the device is made complete of metal, and as far as i know wireless charging doesn't work through metal. I don't have knowledge of wireless charging so if exist a typed of [Wireless charging board/Module]...
Hello,
First of all, I'm new here and an electronics newbie, especially when it comes to DIY.
I have the Sony WH-1000XM4 headphones. They get power via USB Type-C.
I'm thinking of creating for them a tiny Qi receiver, to enable them wireless charging.
In general, for creating a Qi receiver...
Hi guys,
I just found old flashlight and due to inability to use any of the new batteries I decided to create new one from 4xAA batteries (NiMH aku AA;1,2V/2000mAh Panasonic "Eneloop").
I created simple circuit and used old flashlight switch in it. It works just fine. Then I added DC charging...
I am currently trying to design a DC powered USB charger station (just charging and no hub/connectivity/upstream/downstream) that can charge multiple USB devices simultaneously and from my hurriedly put together research online, I understand that charging specifications of mobile devices (mostly...
I am designing a hand cranked charging circuit for a NiMH battery.
I have used a LM317 voltage regulator however im not sure exactly what output voltage to use for charging a single 1.2V AAA cell.
Can anyone help?
Hi there,
So I am interested in the charging of NiMH batteries, some websites say that they should not be charged over 0.1C, some say 0.5C some say not over 1C.
I bought this wind up torch with a 80mah 3.6v batteries pack and noticed the current flow is around 200 mA, this is 2.5C.
So my...
Hi, I'm new to electronics and I've been starting a project of my own which is a charger (since i though i should start first at power electronics since its all about electricity before pursuing switching electronics or automation). I had previously created a charging system (using the li-ion...
Hey! I just registred here several moments ago because I am currently working on my own project and I've got a lot of questions on electronics, sensors, gadgets right now because the project requires a lot of knowledge in it but unfortunately I don't have, so I came here. Let's move on the...
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