Yeah, battery packs are garbage compared to modern low self discharge rechargeables. IE: Eneloop's. Just buy the rebranded ones Amazon has:
http://www.amazon.com/AmazonBasics-H...ct_top?ie=UTF8
http://www.amazon.com/AmazonBasics-R...ronics&ie=UTF8
Edit: Read a few current Eneloop reviews, and the current bundled charger isn't garbage like previous ones. Which makes these a lot easier to recommend:
http://www.amazon.com/Panasonic-K-KJ...vw_txt?ie=UTF8