When it is in bulk charging, it will also have another red LED glowing along with the blue or green one. If after you deplete it, you don’t get the red light after plugging it back in it probably won’t detect lithium. Usually not going into bulk is because you have too much voltage drop from your converter to battery so your converter thinks your battery voltage is higher than it really is. Is your battery right beside your converter? Here is a picture of my firmware sticker for reference.