Compatible with various battery types including 3.7V lithium, 6V/12V lead-acid, and 3.2V lithium iron phosphate batteries. Equipped with overcharge and discharge protection to battery safety. Battery type identification with voltage range for accurate detection. Connect the battery first, then the LED, and finally the solar panel for optimal performance. The output end indicates the battery type by flashing light, providing clear status feedback., Weight: 0.1763698096 pounds, Manufacturer: Ounfhtrttk