I premplace little by little all my batteries in these after trying the Sanyo SANYO eneloop XX 8 Batteries Type AA - LR6 - with 2 x 2400 mAh "Mertrado" Transport Case 4 AA battery (Mignon / LR6) or AAA (Micro / LR03) for a camera. I load with LCD Fast Charger AccuPower IQ328 for AA / AAA batteries.