66 of 70 people found the following review helpful
The claim that 'Duracell are the best' is generally not true, at least not compared to other top brands such as Panasonic. Duracell don't actually manufacture any of their own rechargeable batteries, but outsource what they want and wrap it in their own label with their own marketing spin on it. This has led to hit and miss quality in Duracell's rechargeable line in the past. However, their Staycharged cells generally make use of re-wrapped Sanyo/Panasonic eneloops (make sure to get the made in Japan white tops for this), and these now appear to be re-wrapped Sanyo/Panasonic 'eneloop pro' (or 'XX' to the UK and EU market). The eneloop line is widely accepted as the best in the market, so this is of course good.
I would emphasise, do not buy Duracell assuming that they are the best; their name on a battery doesn't mean it will be good. However, the 2000mah Staycharged (if white top and made in Japan version), and these new 2400mah made in Japan dark grey top Duralock cells are genuinely the top on the market right now, being re-branded eneloop/eneloop pro/XX cells.
The Staycharged white tops have 1000-1500 charge cycles and 2000mah capacity, whereas these Duralock's have 2400mah capacity (20% more) and only 500 charge cycles (50-66% less). If you want top capacity go for these, if you want greater longevity go for the 2000mah Staycharged ones.