For the price of a mid-range Android phone, [Kenneth Finnegan] turned a 50 caliber ammo can into a 50 amp-hour portable power supply. The battery pack uses four 3.5 V LiFePO 4 cells wired in ...

To ruggedize his build a little, he put it in a 50 caliber ammo can making it more ... features built-in to the computer PSU, so this ammo box power supply is still protected from short circuits ...

Upon inspection of the vehicle, officers discovered boxes of .50-caliber ammunition typically used for machine guns and sniper rifles. CBP posted an image on X of ammo seized on January 20 and ...