DC 3.7V to 1.5V UPS Charge-Discharge Module

Power your 1.5V devices seamlessly with this high-efficiency DC 3.7V to 1.5V UPS Charge-Discharge Module. Designed for versatility and reliability, this compact board acts as an Uninterruptible Power Supply (UPS) for electronics that typically run on AA or AAA batteries. It manages the charging of a 3.7V Lithium battery while simultaneously providing a stabilized 1.5V output, ensuring your devices never lose power.

Features:

• Dual Functionality: Works as both a lithium battery charger and a step-down (buck) voltage regulator.
• UPS Function: Automatically switches between input power and battery power to ensure uninterrupted operation.
• Precise 1.5V Output: Ideal for replacing traditional 1.5V alkaline batteries in sensitive electronics.
• Compact Design: The small footprint makes it perfect for DIY projects, toy repairs, and portable gadget modifications.
• LED Status Indicator: Onboard LED provides visual feedback on the module’s operating state.

Technical Specifications:

• Input Voltage: DC 5V
• Battery Compatibility: 3.7V Li-on/Li-po
• Output Voltage: DC 1.5V (Constant)
• Charging Current: 800mA
• Dimension: 9mm/0.35 inch x 18mm/0.70 inch

Ideal Applications

• Battery Replacement: Convert AA/AAA battery-operated devices (clocks, remote controls, electric toothbrushes) to rechargeable lithium power.
• Smart Home Sensors: Ensure 1.5V IoT sensors stay online during power flickers.
• Portable Electronics: Custom DIY power banks for specialized low-voltage gear.
• Education & Prototyping: A great tool for hobbyists learning about power management and voltage regulation.

Note: Ensure your 3.7V battery has adequate capacity for your specific load to maximize the UPS duration. Always double-check polarity before applying power to prevent damage to the module.