T180 - very short stan-by time.
 

Phone seems workink good, it is possible calling and receiving call but batery is always discharged very quickly.
Phone can be on for only few hours (up to about 10 hours without calling). Battery is new. I measured st-by current - it is 50mA ! (when lights are off and transmiter is off). I think it is almost 10 times bigger than should be. Although i have no any service manual for this model. What should i check first ?