i got the results......but need your help. This will be hard to explain, but bare with me....I broke into the battery and put a meter on the cells. This battery has two different cells. It has a white, blue and red wire. The white goes to both -. The red goes to one +. The blue goes to one +. Voltage from white to red is 4.2. Voltage from white to blue is 4.2. Voltage from red to blue is 8.4. I dont understand the three wire system???
What happens to the 4.2V when it enters the xrb? does each 4.2V wire supply a motor or does voltage combine to the 8.4 and go in??? This is confusing because i dont know if the battery pack is supposed to have 8.4 volts combined cells or 8.4V per cell....
another strange thing is that the pack is only supposed to be 7.4V

The only way i could check the charge is to put the meter directly on the cells terminal as the pack was charging and it was reading 4.2V , so i am assuming that was the charge reading???. The chargers output is supposed to be 8.4 V. So, 4.2 V per cell is 8.4??? is this right? I dont know if this is making sense to any of you, but try please try to shed some light on this for me. Everything leads me to believe that this is a bad battery, but i dont know how if theese readings are correct.