weltatec Quality Battery Battery Accu digicam compatible with Olympus PEN E-P1 E-PL1 E-PL3 / PS-BLS1 BLS-1 Digital Camera - high capacity rechargeable Li-ion battery replacement battery camera battery - (only original weltatec with Hologram) (Electronics)
Of course not as good as the original battery, but to good use as a spare battery. He does not quite as long as that of Olympus, but is sufficient (but charging time is the same). Keep a spare battery, when the own again for inopportune occasion gives up the ghost.