Through some neat illustrations, it shows a few different DIY techniques to ensure you're never without water when exploring the great outdoors.

🔋In times of emergency, conventional power sources might fail. Whether it’s due to a natural disaster, a technical failure, or environmental factors, having a backup plan is crucial. A car battery, a versatile and relatively inexpensive option, can be converted into an emergency power source. This guide will walk you through the essentials of using a car battery to power basic tools and lights when you need them most.

1️⃣Identify Terminals – Find the positive (+) and negative (-) terminals on the battery.
2️⃣Connect Inverter – Attach the black lead to the negative terminal and the red lead to the positive terminal.
3️⃣Check Connections – Ensure all connections are secure and correct.
4️⃣Test Before Use – Use the multimeter to check for correct voltage and no stray currents.

📈 Scaling Up for More Power
Use Multiple Batteries – Connect batteries in parallel to increase capacity.
Proper Connections – Connect positive to positive, and negative to negative.
Attach Inverter to One Battery – Only connect the inverter to one battery in the setup.

Source

Tools Required
Multimeter
Wire Cutter
Crimping tool
Screwdrivers
Power inverter

Tourniquets Exposed to the Afghanistan Combat Environment
Have Decreased Efficacy and Increased Breakage
Compared to Unexposed Tourniquets