Charge termination test and a bright pink USB torch head

By Julian

Youtuber, shed dweller, solar charge controller aficionado

17 thoughts on “Update: diy single 18650 cell mobile power bank”
  1. Avataaar/Circle Created with python_avatars jawad marai says:

    please consider a video about replace lead acid battery with lithium , thanks for a great video,

  2. Avataaar/Circle Created with python_avatars Debbiebabe69 says:

    Is there any way of testing a charge doctor? I think mine, a cheap Chinese one from China, is actually restricting current as things seem to charge a LOT slower when the doctor is attached than without?

  3. Avataaar/Circle Created with python_avatars sammy says:

    Hi Julian ,I have the same kind of 4 cell charger , the problem is after fixing it the power shows 75% charge n not 100% ,but when i use it to charge my cell phone it,s not chargeing my cell phone , what could be the problem , you advice please

  4. Avataaar/Circle Created with python_avatars Cam R says:

    Would be nice to see how efficient these banks are at using a single 18650. I have had issues with poor mah rates

  5. Avataaar/Circle Created with python_avatars Dirk says:

    I've recently bought a few of the Nitecore Tube, keyring flashlights to give to friends as gifts. The pink where a dollar cheaper than any other color, so now my friends now have pink flashlights.

  6. Avataaar/Circle Created with python_avatars luis ramos 2550 says:

    charging from one power bank to another you only lose about 1 or 2 % so not as daft as you might think

  7. Avataaar/Circle Created with python_avatars StreetMachine18 says:

    Just bought one of these battery cells on ebay for 99 cents Canadian / 75 cents US.

  8. Avataaar/Circle Created with python_avatars killarmy220 says:

    Thank you sir! What is the maximum output current for this little power bank ?

  9. Avataaar/Circle Created with python_avatars Karim Ismail says:

    Julian,thank you.

  10. Avataaar/Circle Created with python_avatars MrHadaak says:

    it looks like it has single cell charge monitoring. might be a good buy. I have salvaged some 18650 laptop batteries and I'm looking for some usb charger boxes.

  11. Avataaar/Circle Created with python_avatars danh le says:

    how many of those spot lights do you think you could use simultaneously if you used a usb hub to attach to the powerbank….sounds like simple math, but im an electronics noob….

  12. Avataaar/Circle Created with python_avatars Kapil Thakar says:

    Great Explaination…

  13. Avataaar/Circle Created with python_avatars david barley says:

    nice video .. where i can buy that white box ? 

  14. Avataaar/Circle Created with python_avatars Simon Schraut says:

    Is the torch head still available somewhere? I searched for it on ebay, but I didn't find anything useful at all.

  15. Avataaar/Circle Created with python_avatars Ben Winkel says:

    "Just in case" I get it! Made me laugh!

  16. Avataaar/Circle Created with python_avatars socoro1234 says:

    thank for your sharing. wanna buy so try to find some information.

  17. Avataaar/Circle Created with python_avatars niconneo says:

    Why did you tag this video DIY?!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.