Power Supply Module DC 2.5V~5V to 5V 1A Battery Charging Circuit Module/Power

DC-DC USB Output Charger Step Up Power Boost Module 0.9V ~ 5V to 5V 600MA USB Mobile Power Boost Board Circuit Board

Stemedu 10PCS 5V 1A Micro USB 18650 Lithium Battery

Can be used for multimeter, converted to lithium battery charging Discharging current: Max. 2A Input voltage: 4.5-8V DC Output voltage: 4.3-27V DC

AITRIP 6PCS 2A USB 18650 Lithium Li-ion Battery Charger Module Boost 3.7V to 5V 9V 12V Adjustable DC-DC Step Up Boost Module TP4056 DIY Kit Parts

Alinan 12pcs Step-Down Power Supply Module Mini DC-DC 12-24V to 5V 3A Voltage Buck Converter Adjustable 1.8V 2.5V 3.3V 5V 9V 12V

5V Boost Step Up Power Supply Module 5V 1A Lithium LiPo Battery

USB Lithium Battery Power Charging Module XH-M352 5V 1A Booster Step Up Module Precise Linear Rectifier

ESP Power Supply Module with Multiple Output Voltages 1.25V 1.5V

Powering a pro micro board with li-ion battery and USB connector

DC DC 2.5V 5.5V To 5V 2A Step Up Power Module Power Bank