A
Anonymous
Apr 03, 2026
Rating: 5/5
Great for portable projects
Used this to power an Arduino Nano off-grid. Works flawlessly and holds charge well.
Description
YwRobot Lithium Battery Power Module 18650 Charging 3.7V Boost to 5V Output for Arduino
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Input Voltage | 3.7V (Single Li-ion) |
| Output Voltage | 5V DC Boost |
| Battery Compatibility | 18650 Lithium Ion |
| Max Output Current | 1000mA |
| Charging Current | 500mA (Default) |
| Protection Features | Over-charge, Over-discharge, Short Circuit |
| Charging Port | Micro USB |
| Output Connector | 2.54mm Pitch Header |
| PCB Dimensions | 65 x 25 x 12 mm |
| Weight | 18 grams |
5 reviews
A
Anonymous
Apr 02, 2026
Rating: 5/5
Exactly what I needed
Simple setup, stable voltage output even when battery drains down.
A
Anonymous
Mar 13, 2026
Rating: 3/5
Decent but warm
Functions well but gets warm during high current draw near the limit.
A
Anonymous
Mar 13, 2026
Rating: 5/5
Reliable power
Been using it for a weather station for months without any issues.
A
Anonymous
Mar 02, 2026
Rating: 4/5
Solid module
Good build quality. Charging LED is a bit bright at night but otherwise perfect.
5 FAQ
Q: Is this compatible with Raspberry Pi Zero?
A: Yes, provided the total current draw does not exceed 1A.
Q: Can I adjust the charging current?
A: Yes, by changing the onboard resistor according to the provided schematic.
Q: Does it support pass-through charging?
A: Yes, you can use the output while charging the battery via USB.
Q: Is a battery included in the package?
A: No, the 18650 battery must be purchased separately for safety reasons.
Q: What is the low voltage cutoff?
A: The module cuts off output around 2.8V to protect the cell from damage.
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