Chosen Solution
Navibot sr8855 after repair of FET tranzistors for brush have bad mooving - navigation. From the beginning it worked well and after some time was problem in navigation. It looks like that: move 20-30cm stop and go back about 3cm, turn 90st. and repeat. Sometimes work good for 1 minute and then again fail to this state. I try test mod and all sensors look fine, motors are OK too.
Hi, yes, i found that it was dusturbation in system . I add some capacitors on motor and all is OK
Can you describe more precise what did you done? Could be the aging of the accumulator?
I must replace suction motor and with it start the disturbance of electronics. For this I used capacitors on motor pads. I was 1nF + 100nF + 1uF together. To other motors must be carefull becouse are PWM drivered. There You can use only some smaller - max 100nF capacitors.
Can be that the battery started to decay?
It could probably have an effect but it is not a reason.