The extremely compact and ultra-slim design of the Li-40B rechargeable battery makes storage and transportation convenient. With a capacity of 900mAh the new Li-Ion battery for the IR-300 or other devices allows hundreds of images to be shot before the battery needs to be recharged - Rechargeable lithium-ion battery - Never run out of battery power when you're just about to capture the perfect moment - Latest lithium ion battery technology gives the best performance possible compared to other battery technologies such as Ni-MH - Made with power saving design and can be used for prolonged time - Compatible with Olympus IR-300/D630zoom/FE-5500/X-60SP-700/U700/U700SW/U710/U720SW/FS-150/FE-160