All Master Instruments (MI Battery Experts) replacement batteries are produced using the most premium quality cells and components available. Directives on Quality Assurance given to manufacturing often result in battery specifications being superior to the original equipment battery. The battery cross-reference information on this site is to be used as a guide only. Master Instruments has relied on information from OEM's, distributors and end users with the utmost diligence and care possible. Please be sure to check POLARITY, VOLTAGE & SIZE before installing. Master Instruments Pty Ltd will not be held responsible for damage caused due to the incorrect selection and installation of our range of replacement-after market batteries.