Ranked in these QuestionsQuestion Ranking
Pro Proven quality
Lots of users say that the batteries only start to get bad after 5 or more years of constant usage proving that the stated 2100 cycles are more or less accurate. When the battery finally dies, users stay loyal to the brand and buy the Eneloop series again, because of the proven quality.
Pro Hold more power than stated
Although the stated capacity is 750 mAh they actually hold up to 800mAh.
Pro Pre-charged using green energy
All the batteries are charged in the factory with solar power so the process is environmentally friendly.
Pro Long storage life
The batteries loose the charge slower compared to other brands. Expect around 10-15% loss per year while other brands can loose 20-50$ per year.
Con Possibility to buy fake ones
Due to the popularity of the Eneloop batteries it is possible to buy fake ones if you shop for them in less known websites and in eBay.
Con Can have little or no charge when bought
Although Panasonic states that all the batteries are pre-charged a small percentage of users noted that the batteries were almost or completely empty when bought.