For three years I have been using the re-chargable as my main battery, but always have the AA pack in the bag in the Jeep for back-up. Been thinking about the RNB for a while. Well after a trip to the Jeep in the middle of a hunt today for that back-up pack, I ordered one when I got home. Are they as good as they say? I hope so, I am sure I have spent the cost for one buying AA's the last three years.