Solus Ultra keeps turning on and off

[DeeDee]

Can anyone shed any light on why my
Solus ultra out the blue keeps switching on and off.
When Switched on it goes to the 1st screen then turns off. Battery test says fully charged on snap-on multi meter. Yet says battery low when starting up helllp.

[Steve6911]

Did you try starting the machine when its hooked up to the charger or the vehicle?

[SnapOnKid]

How old is the battery?

You could have a bad cell or something that is shorting under load when the unit is being turned on.