Razer Mamba 16000 Chroma - need help

So i recently just going on holiday to my parent house, i bring my mouse (because i bring my laptop there). but i forgot to bring my charging dock, i only bring my cable. i'm afraid that the battery life will be reduced while i used it on wired mode for about a couple weeks. do any of you know how to deal with this ?. i did read an article that said you can remove the battery (here: https://support.razer.com/gaming-mice-and-mats/razer-mamba-legacy/), but i can't find a way to remove it, the tutorial on youtube was for the previous version of razer mamba wireless. or is it save to use it on wired mode for such a long time as long as the wireless mode was set on off condition ?.