The Ag105 is a solar charge controller for protected Lithium-ion (Li-ion) and Lithium Polymer (Li-Po) batteries that can also be used with a fixed DC supply in standalone applications. The module requires very few supporting components to configure the charge controller to any application. With a wide operating input range of 11VDC to 36VDC and using intelligent charging techniques, such as Maximum Power Point Tracking (MPPT), the Ag105 will adjust the charge rate to optimise the power produced by a solar panel. The Ag105 can be configured for 1, 2 or 3 series cell Li-ion batteries, with 4 voltage per-cell options to balance serviceable battery lifetime and usable capacity.