1 EEVblog #176 - Lithium Ion/Polymer Battery Charging Tutorial
Dave Jones explains how lithium-ion and lithium-polymer cells are charged, including the constant-current and constant-voltage stages, for people building or choosing a charger.
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Dave Jones explains how lithium-ion and lithium-polymer cells are charged, including the constant-current and constant-voltage stages, for people building or choosing a charger.
DIY Perks builds an over-discharge cut-off for lithium cells using a low-voltage alarm module to trigger a relay; used as the starting point for home-made protection boards.
Julian Ilett examines the TP4056 lithium charger module with DW01A protection; cited for its fixed cut-off voltage and for using the output while charging.
Big Clive tests whether over-discharged lithium cells are safe to recharge and how to check them for damage; cited in debates about deep discharge.
Footage of a lithium-ion battery exploding, linked as a warning before people experiment with charging cells without proper protection circuitry.
Dave Jones shows how to charge Li-ion and LiPo cells from a bench supply using constant current then constant voltage; followed by people charging single 18650 cells.
BigClive opens a lithium jump starter power bank, estimating its peak current with improvised methods and showing cable and cell resistance effects in practice.
Shows Li-ion cells being overcharged until they fail and burn; linked as a warning in threads about home-made chargers.