Lithium battery doctor

PROOF OF CONCEPT PROJECT

⚠️💥 WARNING:LITHIUM BATTERY MAY EASILY EXPLODE OR TAKE FIRE, REPLICATE THIS PROJECT AT YOUR OWN RISK💥⚠️

Complete solution for Li Ion batteries

Features:
  Charge, discharge, amp hours count, test for short or open circuit, weak battery indicator, measure internal resistance.

• Charge:
    TP4056 module (integrated), selectable current ~200/500/1000mA. TP4056 circuit is monitored by Arduino.
• Discharge:
    current up to 2000mA (step 20mA), PWM controlled. Internal resistance is calculated from battery voltage drop under load.
• Capacity:
    Battery gets fully charged, then discharged, mAh on selected current load is counted.
• Recovery:
    Deep discharged battery charge with 100mA current.
  
  

This is a revisited project originally developped by Akos Boda in 2022 (https://www.thingiverse.com/thing:5229303).