The BattMan project on Battery Management for Solar-Powered Devices is planning to:Design and develop battery-pack systems which manage photovoltaic power feed efficiently and deliver optimized, reliable, low-cost and predictable performance.Batteries and battery management systems are the essential storage elements in any solar-powered application. These systems can be employed in a variety of different markets and applications, as will be described below, yet reliable long-term service of the battery and system is the common challenge for all of the applications. The BattMan project therefore focuses on these essential elements and targets solar-powered, off-grid street lighting poles as a challenging demonstrator. It will be simulated, specified, designed, prototyped, demonstrated and validated in the project.The objectives of the BattMan project are therefore to develop:Obj1 – Improved battery chemistry and battery packs for predictable, reliable, safe, and long life operationObj2 – Improved battery management systems for ensuring specifications, including state-of-health (SoH) and state-of-charge (SoC) reporting, cell balancing and temperature stabilizationObj3 – Enhanced efficiency of the overall energy chain in the system, including maximization of system performance for both the application requirements and battery lifetimeObj4 – System integration of electronics with photovoltaic panels, PV optimization and applications of the systems for supporting an internet of energy for smart gridsObj5 – System and prototype designs for the demonstrator application of the Solar-powered Off-grid Street LightingThe knowledge gained within this project will be generated to be used to support a variety of applications.The consortium partners in this small, targeted project bring world-class experience, and consist of battery suppliers, battery management system developers, photovoltaic panel producers, lighting system manufacturers and universities.