battery doing weird things, help needed

[rondoolaa]

i have one of those battery checkers that is just a circuit board with an lcd display wrapped in clear heatshrink,

one of these: http://www.google.co.uk/imgres?q=lip...9,r:7,s:0,i:90

my overlander 2200mah 25c lipo batteries all read ok except 1,

the dodgy one reads on 6 cycles of the voltage readout,

cell 1 = 6.84
cell 2 = d3.2
all = 6.73


cell 1 = 7.00
cell 2 = d3.1
all = 6.75


cell 1 = 7.09
cell 2 = d3.1
all = 6.75


cell 1 = 7.13
cell 2 = d3.1
all = 6.78


cell 1 = 7.16
cell 2 = d3.0
all = 6.79


cell 1 = 7.22
cell 2 = 3.0
all = 6.79


if its just the fact that cell 2 has gone too low then would it be ok to balance charge and would the charger do it ok as one is so low or would i have to lower the higher cell with a bulb or simular, also its weird how after each cycle of the tester the voltage of cell 1 goes up in voltage.....

i have another tester made by fusion but that one reads all my other batteries ok but just does a clicking noise when connected to the battery in question


thanks for any help