Keep three factors in mind.
I appreciate the tip... In the pack (besides the factory battery pack) I have 4 extra battery packs. I hadn't thought about getting a battery pack that holds alkalines. I'll give that some consideration.... Thank you
1) In an emergency you will not want to, or even be unable to, recharge batteries.
2) The shelf life of most rechargeable batteries (how long they will hold a charge) is horrible, alkaline batteries have shelf lives of up to 10 years.
3) The useful in-use life of an alkaline pack is much better than most rechargeables.