A Lenovo T420s if you like the old IBM keyboards (like model M), or T430s or above if you like the island-type keyboards. They can all fit extra batteries, larger batteries, and are easy to upgrade and repair.
Also look at the T520 and T530 (and above) for the same reasons - these have bigger displays. They typically feature only an intel HD graphics chip.
Well, considering the fact that you need to charge other phones the phone must have a huge battery. The new Gionee Marathon M5 will definitely suit your needs with a humongous capacity of 6020mAh. The phone runs Android Lollipop out of the box and boasts an AMOLED display. It comes as a surprise that Gionee has managed to fit a huge battery relative to ...
One alternative well suited for "CAD and computer programming, and schoolwork (likely with VMs), medium-light gaming (e.g. CS:GO, World of Warships), and lecture note-taking", would be a ThinkPad P73 which NewEgg advertised at $1,399 FOB US Destination in one configuration. The 17.3" FHD (1920 x 1080) IPS, anti-glare, 300 nits screen is well suited for CAD, ...
I'd say a laptop is the best choice. Here's why:
A laptop can be used to develop on several platforms
A Chromebook has been made specifically to surf the web, hence a laptop can be expected to give a better experience.
Laptops have good storage space options, processors and RAM. And as Chromebooks have been made for the internet men, in mind, it doesn't ...
All laptop CPU's have integrated graphics and your laptop will use it whenever possible to save battery. But some apps are using the dGPU by default while not needing it really a lot (I can't think of examples, but they do exist) and when that happens, your battery will drain faster with a dGPU.
Still the best option is to look at the two specific models you ...
I have a Powerex MH-C9000 WizardOne (by Maha?), that has served me VERY well for several years. It was probably one of the most pricy chargers available when I bought it, but I don't think the ones you mentioned were available back then.
Unfortunately It is discontinued, but still available from many stockists as at May 2021. The new version "Powerex MH-...
5200mAh Long Standby Rugged Mobile Phone with Waterproof Shockproof Dustproof Unlocked Phone for Elderly People Adventurers Army Cellphone(Black)
It's $50, and can call and send/receive sms. 5200mAh battery w./ 72 hours talk time and 360 hours standby (as the manufacturer claims). I'm pretty sure the screen is color though.
Lenovo P2 has ~5000mAh, which can last me over a weekend at a pinch.
This gives it slightly less ability to charge other things than the 6000mAh suggestions, although with the P2 itself appearing to be very power efficient, needing less power itself, the difference might not be so big.
Ulefone Power also has a ~6000mAh battery and can charge other phones/devices and is priced very reasonably.
Update: I will retract this as a recommendation as I have some concerns about the quality/reliability of mine.
A Gemini (review) (review) with Debian or Sailfish installed
a PinePhone (shipping now for early adopters)
a PineTab (Real Soon Now)
a DIY tablet based on a https://www.pine64.org/rockpro64/ with exactly the display, battery, and case you prefer (I've used cigar boxes)
A Pi-based DIY handheld
Installing the /e/ OS on 89 different phones of ...
The TDP of an i5-8269U is 28 watt.
TDP = thermal design power = most power cpu will draw when running @ 100% = one of the best ways to gauge a CPU's impact regarding power draw.
if I use... for general purpose... is there a countable ...
What you are looking for are Panasonic's Toughbooks. They are one of the most durable laptops out there. And yes, the battery lasts quite a while. If one battery is not enough for you, it also has interchangeable batteries usable through slots on the side. It is a bit expensive though.
E.g. a Panasonic Toughbook CF-33, which came to life around 2017 is ...
you may replace battery pack
you may replace all accums in battery pack, may be it's lion 18650 3.7v 3000 - 3400mah - 9000mah. ~$3 for one.
you may make a power bank 20-40-60Wah with 18650 elements and DC-DC converter (20V, 5A)
I feel that Hexiwear is a pretty good platform, although a little expensive. I feel it ticks most of your boxes:
rubber wrist band - check
rugged and robust - not really, but it's enclosed in that wristband
small form factor - check
no builtin aps - check
loading own software - that MCU is fully programmable
sub 50$ (49$) to be exact
You might initially be ...
I am answering my own question, in case it is of any interest to others.
For development, I have found an excellent and extremely cheap solution. In fact, it could probably be used in non-profits. Only for a commercial product would I need to have something custom manufactured, as I can't find a COTS solution (needs to be smaller, more rugged, with a ...
There's nothing you should get for your MacBook (right now)
In doing my research, I found just two solutions that sort of have what you want. Both also focus on including more I/O, not just the battery. My guess is for a product of this nature, they'll all do this.
Linedock - $299
At 71.61 Wh–146% of the MacBook 13" built-in battery–this thing packs a ...