EasyPlus 1600 Trickle charge

The documentation says there is a 4 A trickle charge capability. All I have spare on the bottom of my unit is a grey bung. There is no connection / connector. Is it on the board behind this bung ?

I guess you mean an EasySolar? SInce its basically a Multiplus 1600 with additional things, the aux battery terminal should be in the same spot, close to the battery positive bolt, a single spade/faston connector

No, I mean EasyPlus. It’s pretty clear on the blurb that is a feature.

Ah, yes, thats also a thing. I guess thats also just a Multiplus 1600 with additional things

The EasyPlus is a Multiplus with extra bits.

Thx. Will open it up.