I have a 4-year-old.  And--I think he eats batteries!  Well, his toys do anyway!  Our biggest culprit is a light and sound Star Wars Light Saber.  That thing eats 3 AA batteries every 5-7 days!

Enter the Duracell Rechargeable NiMH batteries!

I purchased these rechargeable batteries and the charger just before Christmas.  If you watch at CVS or Walgreens and match coupons, you can get $10 of batteries for almost nothing! 

We immediately replaced the old AA batteries in the light saber with 3 fully charged AA Duracell Rechargeable NiMH batteries.  We found that the rechargeable batteries...