Which charger and cable fast-charge every Tecno phone from the last few years — with the facts for each model.
Phone specs from each phone’s spec page (WhatMobile, GSMArena, the maker) — open a model for its source.
A USB-C charger and cable. The Tecno Spark 40, Tecno Spark 40 Pro, Tecno Spark 50 Pro, Tecno Camon 50, Tecno Camon 50 Pro and Tecno Pova Curve 2 reach their top rate only with the charger from their box — any WisdomUp charger charges them safely, more slowly. The Tecno Spark Go 3 and Tecno Spark 50 top out at 15–18W, so a 20W USB-C PD charger is rated above what they need.
The Tecno Spark Go 3, Tecno Spark 40 and Tecno Spark 50 — their spec sheets list a 3.5mm jack. The others need USB-C handsfree or Bluetooth earbuds.
About 0.8–1.4 full charges: these phones have 5,000 mAh–8,000 mAh batteries, and about 60–70% of a power bank’s rated capacity reaches the phone.