from what folks around here are telling me...best-sony vtc5 (20 to 30 amp 2600 mAh) next-samsung 25R (20 amp 2500 mAh) next- lg HG2 (20 amp 3000 mAh)...i just bought 6 vtc5's, 3 25R's and 3 HG2's for the dna 200 and rx 200 reuleaux's...not telling you how to spend your money, though...