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“Batteries are harmful to the environment, which is why there are special battery recycling facilities. However, we must not forget, reducing and reusing comes before recycling. Many batteries get thrown into the bad batteries pile even though thy still have …
“Being a Do It Yourself guy does means that I am having a good supplies of tools and stuff …. Well thats true but with good things comes great challenges ….. and in my case, right now, I am dealing with alot …
“I had bought few 9800 and few 4200 mAh lithium ion batteries from Aliexpress last year. They were quite cheap… and as I researched more on them, I found that these are fake and their actual capacity may be very …
“Ever wanted a powersupply that you can use on the go, even without a wall outlet nearby? And wouldn’t it be cool if it was also very precise, digital, and controllable via PC? In this instructable I will show …
“This circuit solved a problem encountered in developing a portable device with an ARM Cortex-M0 processor. The power supply consisted of two AA batteries (2 × 1.5 V), and I needed to signal the user about the battery’s state …
“The Raspberry Pi is a low cost, single board computer with reasonable performance and relatively low power consumption, typically a version of the Linux operating system, often Raspbian. The Pi family of boards have turned out to be very useful …
“This is a 48 Led solar / AC rechargeable emergency light. Fully recharged battery works 9 hrs with 24 led’s and 4.5 hrs with 48 led’s. A SPDT switch is used to select 24 and 48 led’s …
“In this Instructable I would like to share with you my most recent project, an AVR-based universal battery charger. What does it mean universal battery charger? Well, it can charge batteries. And it can charge all four basic types …
“There are two things that you don’t want to do with any rechargeable battery on a routine basis: Overcharge it. Overdischarge it. While the above are true for lead-acid batteries, they are particularly true of Lithium-Ion chemistries, but for …
“An Arduino Nano based Spot Welder for battery welding. This Spot Welder can be used to weld 18650 batteries. It needs a 7-12V power source (12V recommended) and uses a 12V car battery as welding current supply. Typically one 45Ah …