Questions tagged [Rechargeable batteries] (177)

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Powerbank — a time Bomb?

Good evening. On the Internet many videos as exploding lithium ion batteries, of course after watching these videos, now nervously glancing at your powerbank xiaomi v2 with caution. There are 20 thousand capacity, not a tiny little bomb. The essence of the question of how to determine the health of the battery? In loss of c...
Quinton41 asked April 19th 20 at 12:10
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How to charge the battery?

Good day There are 2 batteries as pictured Is it possible to connect them together and charge from the car charging (~10% of current) ? And whether they are suitable for the organization of lighting ? For example, small led light bulb 10W 12V ? Thanks in advance
nicholaus80 asked April 18th 20 at 13:33
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The power consumed in lithium-ion battery?

How are the energy capacity of lithium-ion battery and its weight. can formula what else is there?
Piper.V asked April 18th 20 at 12:46
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Backup power supply for MacBook pro and monitor, 7-10 hours?

Hi, work on remote, from time to time turn out the light, but continue working it is necessary) What you can get for a MacBook Pro 15 85w and monitor 33w? Now think about a car battery and inverter 12v - 220v (300w-500w) the type of such But the question is which battery to take and what capacity? I read that it is bette...
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How to prevent swelling of the battery on a Macbook Pro 2017 Touch Bar?

Home and office MacBook Pro 2017 is connected to the Docking station from Belkin, where using Thunderbolt Mac gets charge and network, gives sound and picture on the monitor is 4K. Nearly two years the battery died. Noticed that the laptop started to stand on his feet, and rolling on the table on his belly. The service sai...
vaughn.Homeni asked April 8th 20 at 02:41
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Why not turn on the laptop after the rebuild?

Hello! The Asus F570ZD. Decided to add a SSD. Dismantled the laptop, put the SSD back together again. After connecting the battery I noticed that the laptop wasn't even turned on, was my dream in this place. Then again disassembled the laptop, removed the SSD, re-assembled. After connecting the battery again became warm...
tara.Miller asked April 7th 20 at 16:18
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Is it possible to charge your laptop more powerful adapter?

Can I charge my laptop Acer Swift 5 SF515-51Cdesigned for charging adapter 45 Watt adapter 65 Watt? Earlier there was a myth that you can't do that, but on the other hand, the charger still will not take more than he needs. Besides, now controllers there are even USB cables.
Josephine_Rutherford82 asked April 7th 20 at 11:51
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How to preserve laptop battery life?

laptop Lenovo 45 W battery enough for 6 hours AIDA shows that for half of the year depreciated by 10 percent, how to save? and what exactly does power Saving mode Windows 10&
grant35 asked April 7th 20 at 09:46
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How to reduce heating of the li-pol battery on the drone DJI M2P from sunlight?

Good day! We have a drone DJI Mavic Pro 2. Batteries for this drone Li-pol. Fly only in Sunny weather when the temperature is on average +28 Fly to the sun in the Inferno. Battery heats up from the sun, from natural discharge (probably) at the time of discharge to 20% I immediately put it on charge in the shade. When cha...
Orio asked April 7th 20 at 09:30
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Can I power 2 servo at 5V using Arduino?

You will not burn an Arduino Uno? She Arduino is powered from an external electricity source at 7.5 V. the name of the servos - Parallax Continuous Rotation