The HL-3L compares to the original Canon battery NB-3L. Hahnel is the world?s premier third party camera battery manufacture. This battery is just as powerful, safe and reliable as the Canon version without paying a premium. Only the most modern battery technology is used in hähnel Lithium Ion batteries. They are environmentally friendly, feature a very high energy density and have no memory effect. The batteries are much smaller and lighter than any other rechargeable battery with similar capacity. All batteries are produced to the highest quality standards. A built-in microprocessor safeguards the cells by limiting maximum voltage and by protecting against deep discharge, short circuit and overload. This battery will fit the following cameras :- SD550, IXUS 750, Ixus 700, Ixus i, Ixus i5, Ixus II, Ixus IIs, SD10, SD100, SD110, SD20 and SD500