BU-401a: Fast and Ultra-fast Chargers - Battery University
Figure 5 from Charging Li-ion Batteries for Maximum Run Times An understanding of battery-charging fundamentals and system requirements enable designers to choose a suitable linear or switch-mode charging topology and optimize battery
Charging protocols for lithium-ion batteries and their impact on cycle life—An experimental study with different 18650 high-power cells - ScienceDirect
BU-409a: Why do Old Li-ion Batteries Take Long to Charge? - Battery University
BU-409a: Why do Old Li-ion Batteries Take Long to Charge? - Battery University
How to Select a Lithium-Ion Battery Charge Management IC | Article | MPS