Lithium Battery Charger

Lithium battery chargerThis Lithium battery charger circuit is dedicated to charge lithium batteries. It uses 2 chips, voltage regulator LM317T and ICL7665 warns microprocessors (μPs) of overvoltage and undervoltage conditions.

Charging is completed with a constant current of 60 ma for Aa cells to a cutoff voltage of 2.4 V per cell, at which point the charge should be terminated. The charging system shown is made for multi-cell lithium battery packs of two to six series-connected cells or series/parallel arrangements. It is important that all of the cells built in the pack are at an identical state-of-charge (voltage) before charging. The maximum upper cut-off voltage is 15.6 V (6 x 2.6 V).

Power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.


Tags: charge lithium batteries ICL7665 ICL7665 circuit lithium battery charger lithium battery packs LM317T circuit

Related Post "Lithium Battery Charger"

Self Powered Battery Tester
This self powered battery tester circuit runs
Versatile AA-Cell Battery Charger
This is the circuit design of AA-Cell
Electric Car Battery Charger
This is the scheme diagram of electric
Lithium Ion Battery Charger using Solar Cell Power Source
The above design diagram is the circuit
  1. author

    Javanovich3 years ago

    I have 2 cells of lithium ion (US18650GR), which charger I should make?
    How many cells can be charged?