My 2380 was giving me "low battery" prematurely I figured. Showed 3.9 v unloaded and 2.5 loaded. This is running SS430 around 4Ω @ 38 watts. Thought maybe the battery took a dump so before changing the battery I pulled out the spring from the end cap and cleaned the area where the spring sits, that was it. Put the same battery back in and continued to use it, no "low battery as yet.
I never did like that spring set up too much anyway.
I have a 2380 and 2380T. The 2380T has a solid plate in place of the spring. I prefer the cap on the 2380T.