Transparent Battery Caps
![transparent-battery-caps transparent battery caps](https://www.innovation-creativity.com/wp-content/uploads/2020/05/transparent-battery-caps.jpg)
Transparent battery caps would enable you to see whether or not a car battery needed water without removing the caps and without soiling your hands. – Kay Gordin, Derby, Kan.
April 1960
No need to add water anymore! You can purchase a heavy-duty, long-lasting car battery from Amazon (affiliate link)