Texas Instruments BQ24210EVM-678 and BQ24650EVM-639 are evaluation modules for battery chargers for solar power. The TI BQ24650EVM-639 evaluation module lets users demonstrate the BQ24650 synchronous switch-mode battery charge controller for solar power. The BQ24650 provides input voltage regulation that reduces charge current when the input voltage falls below a programmed level. When the input is powered by a solar panel, the input regulation loop maintains the panel at maximum power output. The TI BQ24210EVM-678 evaluation module assists users in evaluating the BQ2410 solar charger. The BQ24210 features an input voltage regulation loop with programmable input voltage regulation threshold, making it suitable for charging from alternate power sources, such as solar panels or inductive charging pads.