Silvertels’ intelligent battery charge controller modules are designed to maximise rechargeable battery life and reduce power consumption. The modules have a wide DC input voltage range and a high efficiency DC to DC converter. Charging voltage is controlled to a high accuracy, independent of temperature variations. Optimised and programmable charging profiles are used to ensure battery longevity. In the Ag103 the charging cycle is closely controlled and optimised as much as possible, given the random variations possible from the solar panel power source. The module also reports on the battery condition to eliminate unnecessary battery charges and unexpected battery failures. Different modules are available for Sealed Lead Acid (SLA) and Lithium Ion batteries and for charging SLA batteries using a Solar Panel power source.