Squeezed between dragon Momy and elf loli. Nice!
To be honest it would have made more sense if she fried the circuit of the phone with her spark.
Because lighning is countless milions of Volt. To jump 1 cm of air you need approximately 10 000 Volts of electricty and her sparks flew probably 1-2 Meter so that would make 1 -2 Milion of Volts. A phone needs 5 Volts. Thats why you need a charger that regulates the electricty coming from your outlet from 230 V (or 110 V) down to 5 V.Also, charging phones with magic lightning. Honestly that's something I would've figured more isekai would use, but it's done surprisingly little.
To be honest it would have made more sense if she fried the circuit of the phone with her spark.