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)
I had bought this battery because of the price difference to the original. If anything, the differences are marginal and therefore the battery has an excellent price-performance ratio.