Old Torch / Lantern Battery Upgrade

-=The Idea=-This old Uniross torch uses a single Lead-acid 4V battery.Why not replace it with a Li-Ion battery, it has a similar voltage.It is smaller, lighter, and has a bigger capacity.The torch has 3 modes :- alternating switch between – 20 LEDs on the side / halogen bulb on the head- On/Off swit…By: FireSword Continue(…)


Rechargeable, Solar Battery

A rechargeable, solar battery to power all of your projects away from the house and off the grid! This project is designed to work alongside an automated chicken coop but can be used to power any small or medium sized projects. Gather the Materials This is a very simple circuit that only needs 3 …By:(…)


How to Make Battery Charger at Home

Li-Ion batteries (18650 cells) are very widely used in all the electronics gadgets that we use today like mobile phones, laptop, powerbanks, etc. These batteries provide good backup and are a reliable source of power, therefore are also very convenient to use in DIY projects. However, charging these…By: Techgenie Continue Reading » Instructables: exploring –(…)


Raspberry Pi in the Wild ! Extended Timelapse With Battery Power

Motivation: I wanted to use battery powered Raspberry Pi camera to take once-a-day photos outdoors to create long term time-lapse videos. My particular application is to record ground cover plant growth this coming spring and summer.Challenge: Design low current Raspberry Pi power control to ens…By: e024576 Continue Reading » Instructables: exploring – featured