Questions tagged [battery]

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3answers
30 views

USB mouse vs. Bluetooth mouse — less battery drain

Which would drain a laptop battery less, a USB (LED) mouse or a bluetooth mouse? Nothing fancy, just a basic travel 3 button mouse in each case.
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2answers
40 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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0answers
13 views

best lithium ion secondary battery (3A, 3V)

Are there any reasonably priced standard lithium ion batteries that comes closest to: either 3A (discharge limit) and 3 volts (x16 batteries). or 4A (discharge limit) and 4 volts (x12 batteries). They ...
1
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1answer
71 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 ...
2
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1answer
18 views

How to make a battery powered device work direct on power

I have an audio device that works with battery, but this little friend here stopped working,in fact it still works, but apparently it is sending a lot less energy than it should, nor being able to ...
1
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1answer
12 views

Laptop Series Battery Compatability

I need to replace my Toshiba Satellite L655-13X battery with a new one. The batteries I found are for L655-S5083, and L655-S5150. They appear to be the same in the picture to my battery. However, how ...
1
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1answer
42 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 ...
1
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0answers
12 views

Lead acid (PbA) charger and fuel gauge

I want a charger and SoC determiner ic/with example (sample) circuit or a product for a Lead acid (PbA) battery 12V/65Ah. Which can send the SoC through a I2C port to my microcontroller (Raspberry Pi)....
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0answers
11 views

Battery compatibility for laptop (Acer Aspire 7745G-5464G50Bnks)

I want to buy this battery but IDK if it's compatible with my Acer 7745G. As I see, my exact model is not listed in description, just "Acer Aspire 7745G". But on my current battery is written "Replace ...
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0answers
13 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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2answers
15 views

What should I care about when buying a new battery pack for a laptop?

I need to buy a new battery. The model of the battery is Li-Ion Battery Pack A41-K53. Rating = 14.4v 2600mAh, 37Wh. I searched and found the same model, but voltage and mAh is different. The voltage ...
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0answers
7 views

Where to find a reliable laptop battery replacement for ASUS K42N Series?

I bought a battery from an e-commerce site with about 30 reviews from previous buyers, but I am worried if it might explode because it may not be the original battery provided by ASUS. I just bought ...
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0answers
45 views

How to supply jetson tx2 with dji matrice 100 battery?

I want to put my jetson tx2 dev kit on the drone but i don't know how to supply the jetson using drone's battery. I think i need a dc/dc regulator (converter) cause the jetson require at most 19.6V, ...
4
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1answer
42 views

Raspbery Pi case with Real Time Clock and battery power

I have found a few old Kickstart projects, such as this, which consist of a case (not on-topic), containing a Real Time Clock and battery power for the Pi. Some have a few extra features, such as a ...
2
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1answer
24 views

Changeable cell phone battery pack

I sometimes need 10kmah and sometimes 20kmah and would prefer not buy 2 separate battery packs. Money is no object. Is there a cell phone USB charger that is chainable?