Demonstration circuit 2039A features the LTC®4015EUHF, a multi chemistry buck battery charger with digital telemetry system, operating as a 2-cell Li-Ion, 8A battery charger. The DC2039A allows configuring the LTC4015 to support up to 9 cells for Li-Ion and LiFePO4 and 3, 6 or 12 cells for Lead-Acid batteries. Programmable and fully automatic charge algorithms can be chosen for each of the chemistries. Configuration of the DC2039A demo board is achieved by changing 0 ohm jumpers to indicate chemistry and cell count. The VIN voltage must then be appropriate for the cell count and chemistry selected.