#Weather situation today:
it's so cold my camera shows "no battery". While running from #battery .
#Liion
I've been designing PCBs for a while, but this is my first time ever designing one with any sort of battery charging or antenna connection. I hope I managed to do a decent job, but if anyone has more experience with either and feels like taking a look at my PCB/schematic, it would be greatly appreciated!
This is an awesome website in case you want to learn anything about #batteries and how to handle them properly: https://www.batteryuniversity.com/articles
#battery #LiIon #Lead #Nickel #storage #safety #charging #discharging
Защищенные li-ion аккумуляторы 18650 своими руками — добавляем плату защиты
Как из незащищенного li-ion аккумулятора сделать 18650 protected. Добавляем плату защиты сами. Небольшой гайд по этому процессу. А также разберем, как влияет плата защиты на характеристики аккумулятора.
https://habr.com/ru/articles/977468/?utm_source=habrahabr&utm_medium=rss&utm_campaign=977468
#liion #liion_аккумуляторы #18650 #diy
Защищенные li-ion аккумуляторы 18650 своими руками — добавляем плату защиты
Как из незащищенного li-ion аккумулятора сделать 18650 protected. Добавляем плату защиты сами. Небольшой гайд по этому процессу. А также разберем, как влияет плата защиты на характеристики аккумулятора.
https://habr.com/ru/articles/977468/
#liion #liion_аккумуляторы #18650 #diy
It's honestly amazing to me, given the known risks and the level of danger of fire and explosion represented by #LithiumIon #batteries, that they are even permitted to be used, at all.
Yes, the failure rates of #LiIon batteries are very low, but the consequences when they do fail are dramatic and often catastrophic.
Unfortunately, there is no known alternative battery chemistry which can provide equivalent or better power density.
Lower power density means larger, heavier batteries.
Pictured below is a Cat Eye Rapid 3 #bicycle tail light, designed to operate off a single AA (LR06/UM3) cell.
Cat Eye, of course, no longer makes this product, but I have the Auto Rapid 3 version on my bicycle. Almost all new Cat Eye lights use non-replaceable #LiIon #batteries, except the Omni 3 (which uses 2xAAA).
A single AA #battery lasts more than a year in my usage (constant flashing). I've had this light for over 4 years. Had I bought a Li-ion version, it would already be #ewaste.
Proliferation of lithium-ion #batteries in applications where their advantages are superfluous is a practice that I wish manufacturers would end immediately.
Many only have rechargeable #LiIon batteries for marketing "buzzword compliance", especially w/ USB charging, and are purposely designed with non-replaceable batteries, ensuring #PlannedObsolescence and more #ewaste.
Consumers need to especially refuse to buy small devices that lack replaceable, standard cell sizes, like AA or 21700.
Защищенные и незащищенные LI-ION аккумуляторы
Что такое защищенные (protected) li-ion аккумуляторы? От чего они защищают, как они устроены, и когда их нужно использовать? И так ли беззащитны обычные незащищенные аккумуляторы? В общем, подробно о li-ion 18650 и 21700 PROTECTED .
https://habr.com/ru/articles/964490/?utm_source=habrahabr&utm_medium=rss&utm_campaign=964490
#liion #18650 #литийионные_аккумуляторы
Защищенные и незащищенные LI-ION аккумуляторы
Что такое защищенные (protected) li-ion аккумуляторы? От чего они защищают, как они устроены, и когда их нужно использовать? И так ли беззащитны обычные незащищенные аккумуляторы? В общем, подробно о li-ion 18650 и 21700 PROTECTED .
https://habr.com/ru/articles/964490/
#liion #18650 #литийионные_аккумуляторы
@heiseonline deshalb bin ich für ein #Verbot von #Lithiumakkus wie #LiIon, #LiPo & #LiCo-Zellen und verpflichtende werkzeugfreie Entnahme- und Tauschmöglichkeit bei allen Geräten!
"Lithium-Ion Batteries: WHY They Demand Respect" by @hackaday - Conference badges switching up from AA to 18650 cell batteries creates too many chances for people to disregard instructions, like "playing with fire at someone else's house". https://hackaday.com/2025/11/04/lithium-ion-batteries-why-they-demand-respect/ #LiIon #batteries #safety #energy #electronics #Maker #tech
People recommending you manually use a CC/CV power supply are not helping you 😉
Good chargers will let you set what *type* of battery it is, and will correctly charge all major types. I've got a four-cell (four independent charging circuits) that will happily charge NiCad, Nickel Metal Hydride, LiFePO4, Lithium-ion polymer, and a few others. It mostly autodetects the correct type.
They're not stupidly expensive. The model I have is currently $37 Canadian from Amazon:
https://www.amazon.ca/Battery-Charger-Digital-Display-Universal/dp/B09FHSYLTG
Can anyone please give me advice on finding a reputable seller of Li-ion batteries in the UK?
I want to replace the battery in a solar floodlight. It uses 4 ICR18650 cells at 7.4Vdc, and I'd rather buy a pre-balanced battery pack because I haven't worked with Li-ion before.
Harvesting more 18650 li-ion cells
Harvesting 18650 Li-ion cells from dead laptop batteries
Непросто было найти крону аккумулятор не на литии.
Не, я понимаю, что ёмкость больше. Я даже понимаю, что кому-то зарядка батареек через type-C может казаться удобной.
Но в гитару такие батарейки ставить банально нельзя - их преобразователи шумят.
#hardware #log #batteries #rechargable #LiIon #NiMH #guitar #sound #audio #tech
Thought I'd try some of these. If you're not familiar, they're a Li-Ion battery dressed up as AA with an internal PCB that regulates charging and bucks them to 1.5V. Good for devices that aren't happy with the 1.2V of a NiMH AA rechargeable.
The capacity is bullshit, as usual when you buy from China, real one is maybe half that, but that would've been ok.
Not okay: Overheating to the point where the battery compartment is deformed and the device fried*. At least they didn't catch fire. 👎
Can't recommend at all.
* Probably. Can't test it with other batteries because they no longer fit in the deformed housing.
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