I have a 3-d cell and a 2-aa lead maglight as well as a 2-aa regular maglight . my complaint with the 2-aa maglight , whether lead or regular bulb be that they do not hold they charge . I have keep both 2-aa maglight in my car , and barely use it , yet the battery get drain . the 2-aa maglight be not good with battery life when you have it store for several month . I have also store my 2-aa non lead flashlight in my house , and same problem , the battery get drain and I barely use the darn thing . but I guess that be why the maglight be so much cheaper than say streamlight or the other high end flashlight . the 3-d cell lead maglight however be great , battery life hold when store in the house for month , and when use it it do not die on you and keep its brightness .