charging

Hi everyone! Recently I got hold of a bunch of Saft CVH 170KA Ni-Cd cells. But I'm having some difficulty locating its data sheet. Anyone here has an idea what might be the cells capacity (Ah) or has its data sheet? Thank you

Hello everyone This is my first time hearing about this site and thus also posting here. I was curious if anyone knows what kind of polyswitch fuse device things the following descriptions are, they are both orange flat rectangular components with each 2 leads: - one has the marking P 30V IH33...

Hi guys, I have a stable circuit that was working properly but it looks like when the system is running on USB the display is not flickering, but as soon as battery becomes the primary power source the display starts flickering. I have checked all the voltages, everything is working fine. I...

Hi All, I'm hoping some of you help me out. I want to make a power box for my trolling motor. Using a weatherproof case, I want to put a battery, charger and a combo voltmeter/USB charger inside. On the outside would be power connections, the voltmeter display and an on-off-on switch. I want...

Hi, I'm building an engine driven generator to charge a 48V 300Ah LiFePO4 battery bank. The generator will output three phase power at 90 Vac line-to-line, 170 Hz. Electrical output power will be about 10kW at best efficiency point. I'm looking at options for how best to use this output to...

Hello everyone, i am new here and i don't have any education about electronics. I have just learnt very basic things from internet and by breaking, modifying and damaging electronics..!! I have done assembling computers and repairing motorcycles.. i love fiddling with electronics.. Anyways...

Hi all, Question for any of you who may know: How does mobile robot charging work safely? I notice a lot of delivery robots are designed with these large contacts (boxed in red below), but how are these designed to prevent them from being live contacts in case of customers accidentally...

I've designed a circuit around the tp4056 with DW01A and FS8205A included, as well as load sharing capabilities. beneath circuit is what i use (minus load sharing) now that i'm sourcing lipo batteries, i see most of them have a protection circuit already build in with the same DW01A and...

I want to make an energy control system on a stationary bike. The main input comes from the generator and the secondary input comes from the 6V battery. The voltage from the generator ranges from 1-10V, so I need to make a buck converter to 5V as load power supply. before pedaling, the power...

Hi folks! So I'm looking into the following, but having a very hard time finding any (remotely) definitive answers. For my smart home, I'm looking to integrate more and more sensors that can relay all sorts of information. Most of these sensors I create myself using ESP32's and the like...

So, I have a few things which use 18650 cells. I also have a balance charger for hobby RC aircraft, an IMax B6AC to be precise. Instead of buying an 18650 charger I went for the cheaper option of using the balance charger that I already own. It comes with several outputs, one being two female...

I'm new to circuit design. I'm using an Injoinic IP5306 battery charging IC (datasheet). I also use an AMS1117-3.3 (datasheet) to drop down the 5V power it produces to 3.3V. I've attached a picture of my schematic which shows the relevant portions, the IP5306 in single-LED configuration, the...

For all those that enjoy helping newbies this is the post for you. I am relocating my outdoor theater to our backyard using headphones now and ditching the big speakers. I have 8 sets of the Sennheiser HDR175 and want to rig up a way to charge them all while in a simple carrying case. Can...

Looking for some help and guidance on a personal project for my sport. I play underwater rugby, at international level, the referees in this use a cable operated buzzer system. Now this is a pain. I've designed a small(ish) remote buzzer that will remove all cables to the surface. My only issue...

Hello, I have a voltage regulator (switching & boost regulator) who's output voltage is being set/controlled by a microcontroller. I can set the output voltage to anything between 4.5 volts and 6.5 volts. Under normal operation, the voltage is always going to be between 5.2 volts and 6.5 volts -...

Hi, I would appreciate if someone would be able to comment/advice on the following matter. I have been looking around for an IC that would charge and balance Li-Ion cells 2-3 of them in series. It seems that the balance feature is absent in most cases. MCP73841 appears to provide most of the...

Hi all , Im working on a little project, a RC car witch is powered with a mobile phone power bank . Power bank will supply power to a H-Bridge wich will supply power to the motors and a renesas sakura board (wifi controlled) . The power bank is charged with a USB cable while not running and...