Compatible for Li-ion batteries 18650 18490 18350 17670 17500 16340(RCR123), 14500 Ni-MH/Ni-Cd A AA AAA batteries and 3.7V lithium battery and so on; Snado Intelligent Charger - We guarantee the ...

So [Travis] decided to upgrade it to make use of the ever-so-common, 18650 lithium-ion battery. Not looking to purchase any components [Travis] performed this hack using simple recycled household ...