Fujitsu High power alkaline batteries are produced with cutting edge technology which ensures anti-leakage capability. The Rare metal coat is able to keep lower impedance for long storage and gives extra life and stronger power duration with best performance and reliability perfect for any device(low to high drain).This is a top quality professional battery of an exceptional quality which in our opinion is the best high capacity AAA low self discharge battery currently available. The performance of these batteries is superb and they represent excellent value for money in every respect. Absolute top quality, Made in Japan.