Diymore DC 5-28V 4A MPPT Solar Panel Charging Board UPS Uninterruptible Power Supply Module for 3.7V Battery

Product FeaturesWide DC 5–28V input — Compatible with both solar panels and standard chargers as the power source.Adjustable 5–24V output — Multiple selectable voltage levels to meet different load requirements.Up to 4A charging current — Compatible with a single 3.7V cell or multiple cells connected in parallel.Multi-status indicator LEDs — Provide clear, at-a-glance feedback on charging status.Built-in over-discharge protection — Ideal for outdoor power supply and DIY power projects.SpecificationsInput Voltage: DC 5–28VOutput Voltage: 5V–24V, adjustable (switchable between 6V / 9V / 12V / 18V)Charging Current: 4A (maximum)Boost Output Power: 10W; maximum 24WHeat Dissipation: A heatsink is not required below 10W; above 10W a heatsink must be added, otherwise the boost chip will overheat and the output will become unstableCompatible Battery: Single 3.7V lithium cell, or multiple cells in parallelIndicator LED: Red light during charging; green light when fully charged; blinking indicates nearly full charge or no battery connectedProduct Size: 78mm × 41mmPackage Includes1 × Module