Petzl Ultra and ACCU4 Battery Pack

[celler]

Has anyone tried using the ACCU4 (E55400) 4000mAh battery on the headband of the Ultra rather than using the extension cable and belt clip? It looks like it might be heavy, but I do not have a ACCU4 to test.

Thanks in advance.

 

[Szemhazai]

O lol :shrug: you will need to have steel neck - Ultra's 4Ah battery weights 270g.

 

[celler]

O lol :shrug: you will need to have steel neck - Ultra's 4Ah battery weights 270g.

I know its heavy, I'm just looking for some actual experience from someone who has tried it. Thanks again.