Most are made by the same company and are the same battery with a different sticker. Go with any name brand for quality (IE Rayovac, SureFire, Energizer, Duracell...)
I recommend BatteryStation cells with the CPF discount.
I usually find energizer or duracell for just under $10 per 2 pack at Wal-mart, Lowes, or Home Depot.
Don't forget Panasonic batteries at www.fenix-store.com with the CPF8 coupon code and free shipping!![]()