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Smart LCD Display: Shows the exact battery percentage
Lightweight and portable outdoor design
balcony or even the interior (as a table lamp)
For trickle charging of small 12V batteries (an external charge controller is always recommended when connecting to batteries
POWERplus Bob Cat Saltwater Car STEM Kit toy Smart LCD Display: Shows theBuild Your Own Saltwater Buggy The POWERplus Junior Bob Cat is a DIY STEM construction kit that allows children to build a working buggy powered by a saltwater fuel cell. It combines hands on construction with energy based learning. Saltwater Fuel Cell Technology The vehicle runs on a magnesium air (Mg Air) fuel cell. After adding a small amount of saltwater solution, a chemical reaction generates electricity to power the motorno batteries required.
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