Help: Polymer Li-ion Battery charger controlled by Arduino

hi guys!

im student , im intern @ company, asked me make charger polymer li-ion batteries. use 1 type of battery , lp401730 150mah. reason want arduino because batteries can't charged way, sinds storage cappacity of batteries between 45% , 55%. meaning can't charge 3.7v 4.2v, needs stop @ 3.9v wich 50- 60%. not hard there needs multiple batteries @ time, , want monitor them sepperatly. guys have idea how pull off?

i thinking using charger breakout board based on tp4056 in combination arduino.

the problems run are:

- have never worked arduino , there isn't lot on web (i know, should ashamed)
- there needs 9 batteries charged @ time
- want monitor batteries seperatly like: battery1 = ...% battery2 = ...% ect.
- needs portable, not connected pc time.
- time, gave me project bit late , internship over, finish project sinds idea of it.
- batteries come 3-way molex connector, , use 2 of them (vcc, gnd)

- safety.

hi,
maybe start learning arduino here: http://arduinoinfo.info

the arduino mega has 16 analog inputs can use measure battery voltages. info here

what current want charge at??  c 150 ma  battery rated @ "fast charge" ??

what if:

- / make regulated power supply set @ 4.1 volts  (so can not overcharge)
- set each battery connector series resistor of  r=e/i  = (3.9-3.7/.05 = 4 ohms charge @ 50 ma
- measure each battery voltage. if voltage less 3.9v light led next battery show it's charging. if voltage 3.9v or above flash led (the battery charged, or no battery connected)

write voltage measurements serial monitor (but system leds run standalone).

maybe...

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