<|im_start|>user
What did batteries get invented?<|im_end|>
<|im_start|>assistant
Volta invented the first battery around 1800.  It worked by storing and releasing a charge of energy caused by a chemical reaction.  Since this time batteries have only improved with time.  Around the end of the 19th century batteries were a primary source of electricity for electric grids.  With continuous future improvements to batteries they were being used in most consumer electronics like phones, computers and televisions.<|im_end|>
