Hi, I just got 20 AA NIMH batteries for $35 from www.batterymart.com. I'm using a Duracell 1 hour charger, but I'm leaving these in a bit longer because they are high-capacity 2500mAH batteries. They last a long time thanks to the fact that they are 2500mAH. I think this was a very good investment. They are wrapped in small packs of four. Angie