I have the Black Diamond Apollo LED lantern, and like it a lot. I like that it is dimable, and uses 4 AA batteries, which can be found anywhere.
But instead of proprietary batteries, I prefer to use pre-charged NiMH batteries by Sanyo (now Panasonic) called Eneloop. I have probably 80-100 AA and 50-60 AAA Eneloop batteries, and several chargers. I use them everywhere except outdoors in winter, where I still use alkaline batteries.
The advantage of Eneloop and their ilk, is that, unlike most rechargeable batteries that are dead when you need them, they maintain their charge over time. They will still have 90% after one year and 70% after five years of storage. One of my chargers is USB powered, and can be charged from a car USB port, computer, airport USB charge port, etc. I have two semi-smart Eneloop brand chargers that slow down after reaching charge, and two nicer smart chargers, which can test, discharge/recharge, and charge at various rates. I have a 400W inverter to use the smart chargers on the road. I plan to eventually have solar charging capabilities so that I don't need a running engine to charge the batteries.
This has been a long-term conversion, buying my first Eneloop batteries in 2010, and adding over time. Anything with C123 batteries (mostly flashlights) or button batteries were replaced with AA or AAA powered devices.
Sorry to get off-topic, but this might be interesting to anyone looking at this thread.
