Review on 🔋 Battery Monitor and Voltage Capacity Tester for 12V, 24V, 36V, 48V, and 60V Iron-Lithium & Lead-Acid Batteries – Battery Capacity Indicator with Voltage Capacity Percentage by James Oconnor

I like these so much that I bought another one. These battery indicators are great for exiting a lead acid battery or a long list of supported battery types. I used to have LED indicators, but they actually drained the batteries they were monitoring. These battery indicators are LCD displays and have a power saving function. I couldn't find inventory. Don't worry about the detailed instructions and PDF on the product page. You can just connect the wands to plus and black to minus and it will work immediately. All you have to do is touch the display to switch between modes such as percent or volts. It worked so well I bought a second one for my other lead acid battery. I've seen other reviews addressing the wire gauge. They're small, but you don't need a heavy meter to monitor the battery as these power savers use very little power.