![power supply - Step up converter (3.7V to 5V) that will also charge battery! - Electrical Engineering Stack Exchange power supply - Step up converter (3.7V to 5V) that will also charge battery! - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/EzFVI.jpg)
power supply - Step up converter (3.7V to 5V) that will also charge battery! - Electrical Engineering Stack Exchange
![Amazon.com: Blomiky 2 Pack 3.7V USB Charger Cable with SM-2P Plug Connector for Mini RC Amphibious Stunt Car Boat Trucks 3.7V Li-ion and Li-Po Battery / 3.7V USB 2 : Toys & Amazon.com: Blomiky 2 Pack 3.7V USB Charger Cable with SM-2P Plug Connector for Mini RC Amphibious Stunt Car Boat Trucks 3.7V Li-ion and Li-Po Battery / 3.7V USB 2 : Toys &](https://m.media-amazon.com/images/I/71zoqOiqU2L.jpg)
Amazon.com: Blomiky 2 Pack 3.7V USB Charger Cable with SM-2P Plug Connector for Mini RC Amphibious Stunt Car Boat Trucks 3.7V Li-ion and Li-Po Battery / 3.7V USB 2 : Toys &
![How to battery power a 5V microcontroller with a 3.7V lithium battery (WT32-SC01 PLUS) - General Electronics - Arduino Forum How to battery power a 5V microcontroller with a 3.7V lithium battery (WT32-SC01 PLUS) - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/f/1/3/f13cd136d9ff63ff92c4ef5803021f6a24a7cc71.jpeg)
How to battery power a 5V microcontroller with a 3.7V lithium battery (WT32-SC01 PLUS) - General Electronics - Arduino Forum
![Device works with 3.7V batteries through a step-up to 5V. After discharge, 5V/5A supply is connected and through a lithium charger it charges the batteries. Once discharged to the point the step-up Device works with 3.7V batteries through a step-up to 5V. After discharge, 5V/5A supply is connected and through a lithium charger it charges the batteries. Once discharged to the point the step-up](https://preview.redd.it/ztbrdlslb7u91.jpg?width=640&crop=smart&auto=webp&s=7749758c9b640b099bcf095368aa12ff95f241b7)
Device works with 3.7V batteries through a step-up to 5V. After discharge, 5V/5A supply is connected and through a lithium charger it charges the batteries. Once discharged to the point the step-up
![3.7V 18650 Charger Li-ion Battery USB Charging Portable 18350 16340 14500 Battery Charger - Walmart.com 3.7V 18650 Charger Li-ion Battery USB Charging Portable 18350 16340 14500 Battery Charger - Walmart.com](https://i5.walmartimages.com/seo/3-7V-18650-Charger-Li-ion-Battery-USB-Charging-Portable-18350-16340-14500-Battery-Charger_7d65878e-13b6-4169-9f4b-18d939cb6f63.9e048d5909eb4945abc27d7e3c0e0221.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
3.7V 18650 Charger Li-ion Battery USB Charging Portable 18350 16340 14500 Battery Charger - Walmart.com
![3.7V Lithium Battery Charger 5V 1A 2A Li-ion Lipo Battery Charging Protect Two-in-one Module Micro USB Type-C Protection Board - AliExpress 3.7V Lithium Battery Charger 5V 1A 2A Li-ion Lipo Battery Charging Protect Two-in-one Module Micro USB Type-C Protection Board - AliExpress](https://ae01.alicdn.com/kf/S6310612bbfa44a87ba7c62030c9722877.jpg_640x640Q90.jpg_.webp)
3.7V Lithium Battery Charger 5V 1A 2A Li-ion Lipo Battery Charging Protect Two-in-one Module Micro USB Type-C Protection Board - AliExpress
![Smallest USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input - $1.79 - JacobsParts Inc Smallest USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input - $1.79 - JacobsParts Inc](https://www.jacobsparts.com/images/component/CPNT-E.jpg?size=400,400)
Smallest USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input - $1.79 - JacobsParts Inc
![Auto cut off 3.7 volt Battery charger circuit using Relay, Simple 3.7 volt Battery charger - YouTube Auto cut off 3.7 volt Battery charger circuit using Relay, Simple 3.7 volt Battery charger - YouTube](https://i.ytimg.com/vi/c4G4imPG7dA/maxresdefault.jpg)
Auto cut off 3.7 volt Battery charger circuit using Relay, Simple 3.7 volt Battery charger - YouTube
![5v 2a 3 7v Smart Quick Charger Rechargeable Li Ion Battery Fully Charged Automatic Stop Usb Charger 26650 16340 14500 21700 18650 10440 Li Ion Lithium Batteries Flashlight Headlamp Torch Travel Charger 5v 2a 3 7v Smart Quick Charger Rechargeable Li Ion Battery Fully Charged Automatic Stop Usb Charger 26650 16340 14500 21700 18650 10440 Li Ion Lithium Batteries Flashlight Headlamp Torch Travel Charger](https://img.kwcdn.com/product/1e23312682/3464477c-0701-473c-b742-42c0299107ad_1000x1000.jpeg?imageMogr2/auto-orient%7CimageView2/2/w/800/q/70/format/webp)
5v 2a 3 7v Smart Quick Charger Rechargeable Li Ion Battery Fully Charged Automatic Stop Usb Charger 26650 16340 14500 21700 18650 10440 Li Ion Lithium Batteries Flashlight Headlamp Torch Travel Charger
![Could I charge this with a regular 5v usb output. It is a pack of two 4v lithium ion batteries in series that I made. : r/batteries Could I charge this with a regular 5v usb output. It is a pack of two 4v lithium ion batteries in series that I made. : r/batteries](https://i.redd.it/638akujsi35a1.jpg)