The A 58 is fairly sensitive to deviations from the original. This replica has appealed to me because the storable charge and energy should be higher as the Sony battery. Upon prompt delivery, I can easily load it. Then he fitted neatly into the A 58 and was immediately recognized correctly. Due to the low internal resistance 7.4V is specified instead of 7.2 V normal potential. This has no consequences with regard to compatibility. It should thus be expected but rather a longer duration. In any case, the replacement battery fits as good as the original in the A 58 and works so far just as good. How it shows when it's cold or a long time, I do not know. I will supply later. I can recommend the battery without restrictions. Update 5/25/2015: The battery lasts a long time and decreases only slowly in charging stand, even if one is permanently active with AF and flash. He is in charge status as the original with me so to 2-4% residual charge back and then switches to battery replaced. Reloading takes the empty battery with the original charger 2 h 40 min. So still all the best.
