CTA Digital DB-NB2LH Lithium Ion Replacement Battery for Canon NB-2L and NB-2LH Replaces the Canon NB-2L and NB-2LH rechargeable Li-Ion battery For use with Canon Elph series digital cameras 850 mAh capacity, 7.4-volt output Lithium technology ensures maximum battery life and maximum power No memory effect means there's no need to fully drain your battery before charging