That's the one i was looking at.
It says i qould need to change the resistor based on my battery.
R1 K I(mA)
30 50
20 70
10 130
5 250
4 300
3 400
2 580
1.66 690
1.5 780
1.33 900
1.2 1000
40% of the battery is the mah ot needs to charge so for my 150 mah battery i would need 20 r1. What does that mean 20 ohm?