Where can i buy dash charger for one olus 7
Oneplus.com. All chargers are compatible.
OnePlus' charging technology was rebranded from Dash Charge to Warp Charge. As @Horsault mentioned, you can find Warp Charge adapters in www.oneplus.com and www.oneplus.in, as well as in any official local retailers.
OnePlus Charging Stations
by Saswat Deb Barman, 2020-11-08