Versatile solar charge controller with MPPT for efficient and reliable charging - Input and output: supports 6V, 9V, and 12V solar input with up to 3A output, enabling efficient management of small solar setups - Battery compatibility: charges 18650 Li-ion cells (3.7V) in a 1S configuration; also compatible with lead-acid and lithium packs up to 9V - MPPT performance: Maximum Power Point Tracking to harvest more energy from your panel and improve charging efficiency - Environment and reliability: operates from 40C to 85C, suitable for hot or exposed outdoor locations; compact form factor for tight spaces - Efficiency and design: designed to minimize heat loss at 3A output, contributing to energy savings Use scenarios - Off-grid cabin or shed: keep a small 12V battery bank topped up from a modest solar array - Portable power: charge 18650 battery packs for LED flashlights, USB power banks, or small portable devices - Camping or RV: maintain a compact battery system for lighting and essential devices in warm climates