High Digital Camera Battery for Olympus E1 E3 E-300 E-330 E-500 E510 E515 E520 C-5060 Wide Camedia C-5060 C-7070 C-8080 Wide Zoom E-1 E-3 E300 E330 E500 E-510 E-515 E-520 C5060 C7070 C8080 (Electronics)
For my E3 I needed the batteries. Once charged, they keep very long. Let's see what it looks like in half a year or after 50 charges.
