edan NP60 Li-Ion Rechargeable Battery (Twin Pack)

[Music] a little bit of prying there and there we go we can see the electronics underneath the cap here it was particularly hot if you can see the display there it's over 50 degrees centigrade hello folks and welcome back to dubious engineering today lithium ion in aa cells with battery management circuitry built in in order to reduce the voltage down to 1.5 volts let's get some of these things apart let's test them and let's see how they perform we so we have three different brands of these aaa lithium cells to have a look at here 10 volts which claim to have 2700 milliwatts worth of power in them we have ebls which claim to have 3 300 milliwatt hours of power in them and then we have cratax which claim to have 3 500 milliamps worth of power in them so let's get these boxes open and let's have a play with some of these aa cells so straight off the bat then crate axe here we are so thes