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  • 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.

battery charger

  1. J

    Why did I get an electric shock from this?

    I recently bought a replacement battery for my camera, charged it up, then unplugged it after charging. When I picked up the charger I got a nasty shock. Is this likely to be a faulty battery? Or could it be the wiring in my home? I need to know where the problem lies.
  2. Asheekay

    Battery charger recommendations needed

    What are some of good chargers to use with HG2 model 18650 batteries? A dude recommended Nitecore and Liitokala. Are they good? Which one is better?
  3. hesam_m

    Double Lithium-Ion/Lithium-Polymer USB Type-C Charger

    Nowadays, Lithium batteries are used extensively in portable devices, such as cellphones, laptop computers, electronic gadgets, … etc. There is a standard industry-defined procedure (cycle) for charging the lithium-ion/lithium-polymer batteries, otherwise, the lifetime of the batteries is...
    • hesam_m
    • Resource
    • automatic battery charger battery charger charger lithium battery lithium charger lithium ion lithium polymer
    • Category: Other
  4. L

    Help with charging 2 18650 in series

    Hi, this is a part of a project I am working at right now. I have a solar panel (12V/20W) and I want to use it to recharge 2 18650 batteries in series and these batteries will be simultaneously powering Arduino nano. My question is: Will the solar panel be able to keep these batteries charged...
  5. R

    Can I use a 18650 LiPo Battery to power a Wireless Gamepad ?

    Hello Everyone! I have a 5V chineese wireless gamepad (joypad) that runs on 3 AAA 1.5V batteries, and I want to convert it to power on a single 3.7 LiPo rechargeable battery. I got an idea which involves using a TP4056 charger module to charge the 3.7V LiPo battery using my 5V wall adapter...
  6. M

    Battery Consumption

    Hi guys, I am new here and still not an engineer and have not much knowledge in Battery / electricity but have a major project I am working on and would be very happy to get some answers.. I am trying to build a machine that is using a spin motor that work periodically in set times (650...
  7. L

    Finding Equivalent PMICs

    Hello Everyone, I am making a custom circuit board with many different parts(dc dc converters, chargers, battery management, battery protection, isolation, etc).... The product is to run on 18650 Li-ion battery cells, and if you are wondering why I don't use the ones with built in protections...
    • LukeKnepp
    • Thread
    • battery charger battery management system battery protection equivalent help needed pmic power management
    • Replies: 16
    • Forum: General Electronics Chat
  8. A

    Can you help me with this power charger?

    I am on trip and now I am is small village where I can't buy anything soon. I need charging 4 AAA batteries. Battery have 750 mAh. I have this old charger from Germany. I have electricity 220 v. How many hours I need to charge to battery be full? Thank you in advance.
  9. O

    Battery Charging

    Hi! I've been working on a project and I need it to be portable. So I have two batteries of PKCELL LP785060 it's a 3.7V 2500mAh battery. I connected the two in series which gives me a 7.4V battery. My question is, can I use the adafruit powerboost 1000C to charge these batteries connected in...
  10. Henry Fisher

    Charge Smartphone Battery

    Hello Every One ! I Have Motorola Droid Turbo 1 Unfortunately The Charging Jack Got Broke I tried to Replace it But i was unable to so i wanna charge the internal battery of my SmartPhone Can anyone help me ?
  11. mading2018

    How many filters do I need for a battery charger?

    Hello again, I have some concerns about how many EMI-filters that I should use for my AC/DC charger? My charger is operating as a low-power charing (950 W). I have read in in different articles, that some charger have only one input filter, and in some other cases they also have a output...
  12. C

    Homemade Lithium ion battery bank questions

    Hello all, I'm new here. I'm seeking knowledge and advice about a Lithium ion battery bank that I made. I got these batteries from work out of a device that we replaced the batteries on. It is a somewhat proprietary battery as it is made specifically for this device and not open to the general...
  13. Gryphonn

    Using a 12 Volt Regulated Power Supply as a Battery Charger - Questions

    Hi folks I found this forum via a Google (is your friend0 search. I found some threads loosely related to my question, but nothing specific. Hopefully, some of you electrical/electronic aficionados may be able to assist. I have an old 'Transwest' brand Regulated Power Supply in good condition...
  14. P

    Buck converter not working as it should

    Hello everyone. I am doing a project in which I use a buck converter to convert high vtg to low vtg. Actually the input to the buck converter is from a solar panel which puts out 560 mA constant current and 34 V. And output is a 12V lead acid battery. The N- Channel mosfet is used at high side...

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