Dual USB18650 Battery Charger Module Mobile Power Boost DIY Li-Ion Battery Digital Display Charging Motherboard

Dual USB18650 Battery Charger Module is designed for charging lithium-ion batteries. It features a digital display for charging indication and output load status.

• Product type: Modules Expansions Accessories
• Compatibility: lithium-ion batteries
• Material: electronic components
• Key feature: digital display with charging indication
• Intended use: charging and protection
• Charging indication: display shows IN letters
• Output load indication: long press LED button to start output, display shows OUT letters and relative output voltage and current 5V1A or 5V2.1A
• Protection function: integrated protection circuit to prevent over-discharge, overcharge, and overload
• Note: B+ and B- connections must not be reversed; reversing will cause damage
• Capacity: up to 200,000 mAh
• Voltage: 3-4.2V
• Size: approximately 5.8 x 2.7 x 1.5 cm