If you were interested in an alternative to the ms rechargable batteries, the Eneloop batteries imo are very good and have a really slow discharge rate, the pack I included in the link includes 8 AA and 4 AAA with a charger for 30 bucks, there is also a cheaper version with 4 AA batteries and charger for 19.99. This is what I switched to after finding it difficult to find the regualor ms batteries. http://www.amazon.com/Sanyo-Eneloop...AEPQ/ref=sr_1_3?ie=UTF8&qid=1295723780&sr=8-3