charge

Hi guys, I am new here. FYI before I get started, I am not an engineer, designer, programmer, or anything of that nature. I’m just a dude who loves a challenge, and I love diy home projects. Now, I hope this is the right forum to ask this kind of question! So let me get started: I have lately...

I have a Braun oral-b pro 2000 toothbrush and with the original battery it now only lasts about 1 minute. I replaced the original 3757 Ni-MH battery with an AA size Ni-MH (higher capacity) battery and the red “battery low” indicator blinking. I had put it on the charger and it charged the...

Hello, I am currently re-purposing my old powerbank for a robotics project (BMS and LiPo will be integrated into a 3D printed case). The Powerbank (CellularLine FreePower Slim 5000) was unused for 7-8 months and while opening It, I measured the cell voltage, which turned out to be ~0.7 V...

Hello, I want to design a battery simulator circuit to test my board. My board connects to a single cell li-on battery, 3.8V 2400mAH and it has a wireless charger circuit with up to 400mAH charge. The battery simulator needs to provide up to 1A to the board and to be "charged" at 400mA. I've...

Hello guys. I have a JBL Charge 2+, and i got it as a gift. It has no battery inside, but googled that i can turn it on without the battery by just plugging the charger in. I did that but the speaker does not respond at all, and all it shows is a white power button LED, and thats all. When i...