I'm nervous to try flashing something different. We leave for a 2 week vacation next week and I won't have a pc handy. Probably no wifi most places either. Should I download and store other versions on my phone so I can dirty flash if I have to?
eta: I have way better battery life since flashing this so I'm happy with it. For now I can charge with a wall charger if I need to do it quickly (actually have not tested that yet) but otherwise I'm pretty happy with the rom and my settings so I don't want to change too much.
Never be nervous to flash anything new...Always be excited to flash something new!
Even though your leaving on vacation... As long as you have your base's covered, as in Nandroids and EFS backups, past/current official DU build and a current DU test build all stored on the internal storage of the device really your fine.
Typically when you flash a ROM it settles in and runs good right from the start. It might take a reboot or a hour or so with it on and running for it to really settle in and reach the peak performance. A kernel on the other hand may take just a little longer to really settle in and reach peak performance. My point is if you have what you need and you flash your zip files correctly, and wipe when necessary and
just never wipe your internal storage (sdcard) you can flash ROM's, kernel's, mods and be setup in minutes without any worries or a PC.
Lol... I probably shouldn't say this but... I don't believe it texting and driving! But I'm guilty of flashing ROM's and driving!
I create a separate sub folder on the SD card, called "Root Stuff" or /SDcard/Root Stuff/
Within this folder I keep everything I need to recover my N5, from pretty much any situation and can perform mods easily. I save anything from current/official ROM's, kernels, recoveries, Gapps, radios, flashable zips and etc... Of course TWRP has its own sub folder on the SD card to store nandroids.
Technically you could also save all of these files on either an external hard drive, USB thrumb drive, SD card and USB card reader, and then use an OTG (On The Go) cable to connect the USB drive to your N5 and flash any of the files on it through TWRP since it supports OTG.
No PC or WiFi need in the senerios...
You might want to look into trying either Franco kernel or ElementalX kernel. Both kernels offer a USB fast charge feature that will allow the N5 to charge at a faster rate when connected to a standard USB port (PC). For eg. A standard USB port outputs 500 ma, where these kernel's will allow it to output 900 ma to the phone.