Rishabh Dugar

I tried charging my old phone Le2 via my new one Redmi Note 7 Pro. I did was took a C type to 3.0 cable and an OTG, connected both the Phones together. I could clearly observe that the Le2 was charging, but too fast almost a percent for every 2 seconds. I understood it is due to the lack of power control circut, just like as if the batteries have been shorted together. Is there any device which can make the charging possible without any damage to either of my devices?