Questions tagged [battery-life]

For questions about the battery life of electronic devices.

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battery indicator stays white while charging

Already posted on hp forum but did not get any answers. When i am trying to charge my hp notebook 15g-dr0008u battery, normally as far as i read on some other threads, it should indicate orange light ...
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1answer
179 views

Super low power WiFi server

I have been searching for a low power way to serve a configuration page over WiFi. I have a concept working on a WR703n router, serving a configuration page for an arduino project. The whole thing, ...
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1answer
17 views

Good battery charger for AA+AAA batteries, especially for older batteries that don't charge well in other chargers

I currently have a cheap budget AA & AAA charger which can only charge batteries in pairs of two, and which does not do a good job on older batteries. I'm looking for a good quality charger with ...
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1answer
26 views

Laptop or Tablet for custom use case?

I have a kind of unique use case, I need about 5 pieces of hardware to access a custom web application and I'm in the process of researching my possibilities. My main problem is being on a quite low ...
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2answers
44 views

Looking for low-mid phone with good battery & screen

I need a new phone to replace a Moto G7 Power that I dropped in a lake. I would buy it again but I can't find it anywhere for near its original price (I saw one on eBay for £250, double its original ...
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14 views

Rugged battery powered 4G/LTE WiFi hotspot with internal antenna, recommendations?

I've been searching a lot on the internet for a rugged battery powered 4G/LTE WiFi hotspot with internal antenna. Can't seem to find any suitable alternatives. Need to know if anybody else knows about ...
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1answer
72 views

Are there laptops with extremely high battery capacity?

I noticed that most laptops have batteries that have under 100 Wh of battery capacity. Usually this is fine and can last for hours if you aren't pushing the machine too hard, but I'm wondering if ...
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3answers
171 views

Chromebook or laptop for programming

I'm searching a portable machine for programming and I don't know which is the best between laptop and chromebook. Requirements: At least a 5hr life battery I'll run linux (probably ubuntu or lubntu)...
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1answer
47 views

School laptop for medium-light gaming and good battery life

I'm going to be entering as a freshman Computer Engineering major next school year and am beginning to shop around for laptops to replace my Asus F510UA laptop which has been getting me through high ...
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1answer
18 views

Linux or Android tablet with long battery life and cheap

I am looking for a tablet, which I will use only for email and, possibly, browsing (reading news items only). No games, videos, music, etc. Bluettoth is not required; I am undecided about a SIM card. ...
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1answer
47 views

Processor and battery relations

I would like to buy a new laptop, and this issue appeared: If there is a notebook with 1.4 ghz proc, and there is an another with 2.6 ghz from the same serial, how this parameters related to the ...
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15 views

Is labelled mAh on battery always higher than real capacity whether it only applies for cheap batteries from China?

I see that this battery is 8200 mAh, but capacity is above 5000 (see in "Specifications" tab. Or for example, somewhere I saw Laptop battery which is 7800 mAh but the real is 6000-6600 mAh.
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14 views

What's bond between laptop battery cell quantity and mah? I need the highest possible capacity battery for Acer Aspire 7745G

I'm looking for battery for my laptop Acer Aspire 7745G. I need the largest possible capacity and for me it doesn't matter how heavy it is. As I read in Acer website, more cells means higher weight ...
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3answers
130 views

Off the shelf cheap wearable BlueTooth Low Energy device

I am trying to design an employee tracking system, to track employees from room to room, for saftey purposes. Somewhat obviously, if requires each tracked person to carry a device which uniquely ...
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0answers
30 views

GPS tracker with long battery life and minimal display

I'm looking for a GPS receiver that has an extremely long battery life. Off-the-shelf GPS devices like the Garmin GPSMAP 64s are great, but they only go so far: they promise 16h of battery life. ...
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1answer
26 views

Lenovo 320 - Improve battery life

I am currently student and I wanted to buy budget laptop with relative strong performance. 1 year ago I bought Lenovo 320 ideapad 8GB ram, intel 8th gen. I used it only for programming, browsing ...
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44 views

Searching a good Ultrabook for work

I'm looking for a Ultrabook with this characteristics: Essential 8th or 7th generation of CPU. (i5, i7 or amd) Not more than 13"/14" of screen size. Very important the weight... i need to travel ...
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1answer
37 views

13in Battery Thinkpad/MacBook Pro

I would like to install a battery pack on the bottom of 2017 13in MacBook Pro(I don't mind tapping it honestly). Considering it charges by USB C I am hopefully this might not be to difficult. I use ...
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0answers
30 views

Is there a laptop (linux windows) that can match macbook standby time? [closed]

I have been forced 4 years ago to develop on a macbook pro (late 2013) in order to develop a mac application, although skeptical i totally fell in love with the quietness and the standby time of such ...
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3answers
76 views

Large battery Android phone, able to charge other devices

I need a really large battery Android phone. It should be able to charge other devices using it's own battery power. It must run a relatively new version of Android (4.3 or newer). It must also cost ...
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2answers
45 views

What cell phone (with some qualifiers) has the longest battery life?

I am looking for a cell phone with very long battery life. I value long battery life so much that I am willing to sacrifice every feature except for: Basic calling/texting abilities Modern (html5) ...
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1answer
809 views

Where can I buy a basic non-smart monochrome phone online? (long battery life)

I am looking for a basic phone, to make calls and sens/receive SMS. Nothing more - all else is battery drain, and I am looking for the longest battery life that I can find. To that end, I am looking ...
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32 views

Is reducing the number of active cores in my pc a good idea considering heat and battery troubles? [closed]

MOVED TO SUPERUSER STACKEXCHANGE I have a HP Pavillion dv6 laptop for about 6 years now, but I have always had heat (the computer now and then "freezes" because of over-heating, even when I am ...