#nimh — Public Fediverse posts

Topping up my TV remote Nickel Metal Hydride rechargeable batteries with my home made trickle charger using a Big Clive circuit design from many years ago.

#electroinics
#NiMH #charger

# batteries

With all the technology we have, you still need to power down a device in order to have it's {lipo} batteries charged at relatively controllable temperatures.

That's the reason why removable batteries are a logical thing. That is also the reason why I do not understand from the perspective of fire safety, that volatile power units are permanently sealed in devices.

I have a few obsolete Android devices that are still perfectly usable, for lighter tasks. I refuse to pry them open in order to replace the volatile batteries which are charging at temperatures where the devices need to be shut down. A procedure I cannot do, because the power buttons and the logic integrated circuits behind them are broken. I need to use PPE in order to charge those things safely!

Luckily The European Union got fed up with this sealed battery phenomena and thanks to the Europeans we shall have normal battery separation again in our devices

#Hardware #integrated #circuits #battery #temperature #control #Celcius #Fahrenheit #lipo #lifo #NiMH #nicad #seperate #fire #hazard #PPE

# batteries

With all the technology we have, you still need to power down a device in order to have it's {lipo} batteries charged at relatively controllable temperatures.

That's the reason why removable batteries are a logical thing. That is also the reason why I do not understand from the perspective of fire safety, that volatile power units are permanently sealed in devices.

I have a few obsolete Android devices that are still perfectly usable, for lighter tasks. I refuse to pry them open in order to replace the volatile batteries which are charging at temperatures where the devices need to be shut down. A procedure I cannot do, because the power buttons and the logic integrated circuits behind them are broken. I need to use PPE in order to charge those things safely!

Luckily The European Union got fed up with this sealed battery phenomena and thanks to the Europeans we shall have normal battery separation again in our devices

#Hardware #integrated #circuits #battery #temperature #control #Celcius #Fahrenheit #lipo #lifo #NiMH #nicad #seperate #fire #hazard #PPE

# batteries

With all the technology we have, you still need to power down a device in order to have it's {lipo} batteries charged at relatively controllable temperatures.

That's the reason why removable batteries are a logical thing. That is also the reason why I do not understand from the perspective of fire safety, that volatile power units are permanently sealed in devices.

I have a few obsolete Android devices that are still perfectly usable, for lighter tasks. I refuse to pry them open in order to replace the volatile batteries which are charging at temperatures where the devices need to be shut down. A procedure I cannot do, because the power buttons and the logic integrated circuits behind them are broken. I need to use PPE in order to charge those things safely!

Luckily The European Union got fed up with this sealed battery phenomena and thanks to the Europeans we shall have normal battery separation again in our devices

#Hardware #integrated #circuits #battery #temperature #control #Celcius #Fahrenheit #lipo #lifo #NiMH #nicad #seperate #fire #hazard #PPE

# batteries

With all the technology we have, you still need to power down a device in order to have it's {lipo} batteries charged at relatively controllable temperatures.

That's the reason why removable batteries are a logical thing. That is also the reason why I do not understand from the perspective of fire safety, that volatile power units are permanently sealed in devices.

I have a few obsolete Android devices that are still perfectly usable, for lighter tasks. I refuse to pry them open in order to replace the volatile batteries which are charging at temperatures where the devices need to be shut down. A procedure I cannot do, because the power buttons and the logic integrated circuits behind them are broken. I need to use PPE in order to charge those things safely!

Luckily The European Union got fed up with this sealed battery phenomena and thanks to the Europeans we shall have normal battery separation again in our devices

#Hardware #integrated #circuits #battery #temperature #control #Celcius #Fahrenheit #lipo #lifo #NiMH #nicad #seperate #fire #hazard #PPE

# batteries

With all the technology we have, you still need to power down a device in order to have it's {lipo} batteries charged at relatively controllable temperatures.

That's the reason why removable batteries are a logical thing. That is also the reason why I do not understand from the perspective of fire safety, that volatile power units are permanently sealed in devices.

I have a few obsolete Android devices that are still perfectly usable, for lighter tasks. I refuse to pry them open in order to replace the volatile batteries which are charging at temperatures where the devices need to be shut down. A procedure I cannot do, because the power buttons and the logic integrated circuits behind them are broken. I need to use PPE in order to charge those things safely!

Luckily The European Union got fed up with this sealed battery phenomena and thanks to the Europeans we shall have normal battery separation again in our devices

#Hardware #integrated #circuits #battery #temperature #control #Celcius #Fahrenheit #lipo #lifo #NiMH #nicad #seperate #fire #hazard #PPE

Stop Using AA Lithium Batteries in Portable Strobes and Speedlights https://petapixel.com/2026/04/30/stop-using-aa-lithium-batteries-in-portable-strobes-and-speedlights/ #panasoniclumix #servicenotice #Educational #lithiumion #speedlight #batteries #panasonic #speedlite #alkaline #lithiuim #omsystem #battery #eneloop #strobe #Canon #flash #nikon #News #nimh #Sony #fyi

Einzelschachtüberwachung schön und gut, aber die Anzeige macht mich kirre 😵‍💫

#NiMH #Akkus #Ladegerät #LifeHack #AkkusLaufenNichtAus #FckAlkaline

Sagt mal, könnt Ihr mir ein ordentliches #Akkuladegerät für #NiMH-Akkus empfehlen? Meins (vor x Jahren mal bei Lidl oder so gekauft) meldet die Akkus seien voll, aber sie halten nur wenige Minuten, bis die Spannung gegen null geht. Auch bei neuen Zellen.
Das neue Gerät sollte idealerweise auch einen Akku einzeln laden können bzw. 3 Zellen, weil ich viele Geräte habe, die immer 3 Batterien brauchen.

Waves

https://www.blipfoto.com/entry/3466185531623212320

#blip of a AA #Energizer #NiMH #rechargeable battery. With a #Gimp artistic filter applied.

#blipfoto #rawtherapee #photography #art #france

Waves

https://www.blipfoto.com/entry/3466185531623212320

#blip of a AA #Energizer #NiMH #rechargeable battery. With a #Gimp artistic filter applied.

#blipfoto #rawtherapee #photography #art #france

Waves

https://www.blipfoto.com/entry/3466185531623212320

#blip of a AA #Energizer #NiMH #rechargeable battery. With a #Gimp artistic filter applied.

#blipfoto #rawtherapee #photography #art #france

Waves

https://www.blipfoto.com/entry/3466185531623212320

#blip of a AA #Energizer #NiMH #rechargeable battery. With a #Gimp artistic filter applied.

#blipfoto #rawtherapee #photography #art #france

Waves

https://www.blipfoto.com/entry/3466185531623212320

#blip of a AA #Energizer #NiMH #rechargeable battery. With a #Gimp artistic filter applied.

#blipfoto #rawtherapee #photography #art #france

Today on Mythconfirms: How many Ni-MH batteries can i charge with my 45000mAh powerbank, and how long can it keep you charged for a doomsday scenario
#powerbank #doomsdayprep #experiment
#nimh #batteries

Zolder opruimen; jaargangen KIJK doorlezen (deel 10/veel):

Juni 1987 - Met aluminium-batterijen zou de elektrische auto weer een kans krijgen. Bereik 115km is voldoende. Of een natrium/zwavel accu.

Pas in 1996 kwam de GM EV1 met lood- en NiMH-accu en in 1997 Toyota RAV4 EV met NiMH-accu.

#KIJK #1987 #ZolderOpruimen #ElektrischeAuto #EV #Accu #NiMH

@GamesMissed

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

#charger #SmartCharger #LiIon #LiFePO4 #NiCad #NiMH #LiPo

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

Ist das normal, dass an aufgeladenen #NiMH-#Akkus eine Spannung von 2,1V anliegt (mit dem Multimeter gemessen, also mit hohem Widerstand)?
Eigentlich haben NiMH-Akkus doch eine Ladeschlussspannung/Nennspannung von 1,2V; es sollten also nur maximal 1,2V anliegen, oder?

#Nickelmetallhydridakku
#Elektrotechnik
#Batterietechnik

Share it far and wide. #NIH #NIMH #BethesdaDeclaration #Science

Bethesda Declaration — STAND U...

Boxie – a Gameboy-Esque Audio Player https://hackaday.com/2025/05/11/boxie-a-gameboy-esque-audio-player/ #MusicalHacks #audioplayer #cartidge #ESP32-S3 #nimh

Boxie – a Gameboy-Esque Audio Player - This little audiobook player is a stellar example of the learning process behind a... - https://hackaday.com/2025/05/11/boxie-a-gameboy-esque-audio-player/ #musicalhacks #audioplayer #cartidge #esp32-s3 #nimh

On NiMH Rechargeable Batteries - Do NiMHs work in all gadgets? Do they last? Are they worth the money? Do they save hassle? #storage #rechargeable #NiMH - https://www.earth.org.uk/note-on-NiMH-rechargeable-batteries.html

On NiMH Rechargeable Batteries - Do NiMHs work in all gadgets? Do they last? Are they worth the money? Do they save hassle? #storage #rechargeable #NiMH - https://www.earth.org.uk/note-on-NiMH-rechargeable-batteries.html

#Research funded #Bisexual #Adolescents’ and Young Adults’ Risk for #Depression and Suicidal Ideation: Developmental Trajectories, #Risk and Protective Factors and Underlying Mechanisms https://www.thelantern.com/2025/01/3-6-million-grant-awarded-to-ohio-state-professor-for-research-on-impact-of-microaggressions-on-bisexual-and-pansexual-adolescents/ #pansexual Christina Dyar, College of Nursing, #OhioState USA et al $3.6 million five-year grant from the National Institute of Mental Health #NIMH to study how microaggressions negatively impact this subset of #minority #youth. https://www.thelantern.com/2025/01/3-6-million-grant-awarded-to-ohio-state-professor-for-research-on-impact-of-microaggressions-on-bisexual-and-pansexual-adolescents/

The Automatic Battery Charger You Never Knew You Needed https://hackaday.com/2024/12/02/the-automatic-battery-charger-you-never-knew-you-needed/ #batterycharger #homehacks #rp2040 #nimh

The Automatic Battery Charger You Never Knew You Needed - When we saw [Max.K]’s automatic NiMh battery charger float past in the Hackaday ti... - https://hackaday.com/2024/12/02/the-automatic-battery-charger-you-never-knew-you-needed/ #batterycharger #homehacks #rp2040 #nimh

Für alles andere bleibe ich definitiv bei #NiMH, aber für solche Sonderfälle ist das schon nicht schlecht.

Man muss aber china-typisch sehr aufpassen, welche 1,5V Li-Ion Zellen man nimmt und wo man sie kauft, da ist nämlich eine ganze Menge Schrott erhältlich :-) ... Die hier gibt es auch bei etablierten deutschen Händlern, was generell ein eher gutes Zeichen ist.

Die aufgedruckte Kapazität hab ich nicht nachgemessen, wäre aber gefühlt skeptisch, ob das so stimmt.

(4/4)

Die 1,5V #LiIon-Zellen (Größe AA, integrierter Spannungswandler) haben sich in den in den Heizkörper-Thermostaten (#DANFOSS Eco) richtig bewährt.

Seitdem ich die Temperaturen via #BLE auslese, sind 1,2V #NiMH leider endgültig keine praktikable Option mehr.

Ich habe dann herumgesucht und die relativ neuen 4150 mWh Zellen von #XTAR als mögliche Lösung ausprobiert.

(1/4)

#Heizen #HomeAutomation #Akku

Die 1,5V #LiIon-Zellen (Größe AA, integrierter Spannungswandler) haben sich in den in den Heizkörper-Thermostaten (#DANFOSS Eco) richtig bewährt.

Seitdem ich die Temperaturen via #BLE auslese, sind 1,2V #NiMH leider endgültig keine praktikable Option mehr.

Ich habe dann herumgesucht und die relativ neuen 4150 mWh Zellen von #XTAR als mögliche Lösung ausprobiert.

(1/4)

#Heizen #HomeAutomation #Akku

Die 1,5V #LiIon-Zellen (Größe AA, integrierter Spannungswandler) haben sich in den in den Heizkörper-Thermostaten (#DANFOSS Eco) richtig bewährt.

Seitdem ich die Temperaturen via #BLE auslese, sind 1,2V #NiMH leider endgültig keine praktikable Option mehr.

Ich habe dann herumgesucht und die relativ neuen 4150 mWh Zellen von #XTAR als mögliche Lösung ausprobiert.

(1/4)

#Heizen #HomeAutomation #Akku

Die 1,5V #LiIon-Zellen (Größe AA, integrierter Spannungswandler) haben sich in den in den Heizkörper-Thermostaten (#DANFOSS Eco) richtig bewährt.

Seitdem ich die Temperaturen via #BLE auslese, sind 1,2V #NiMH leider endgültig keine praktikable Option mehr.

Ich habe dann herumgesucht und die relativ neuen 4150 mWh Zellen von #XTAR als mögliche Lösung ausprobiert.

(1/4)

#Heizen #HomeAutomation #Akku

Die 1,5V #LiIon-Zellen (Größe AA, integrierter Spannungswandler) haben sich in den in den Heizkörper-Thermostaten (#DANFOSS Eco) richtig bewährt.

Seitdem ich die Temperaturen via #BLE auslese, sind 1,2V #NiMH leider endgültig keine praktikable Option mehr.

Ich habe dann herumgesucht und die relativ neuen 4150 mWh Zellen von #XTAR als mögliche Lösung ausprobiert.

(1/4)

#Heizen #HomeAutomation #Akku

I don't suppose anyone knowledgeable about #Batteries and their charging mechanisms might have some insight as to what's going on, here...

This is the rechargeable battery for my new (to me) Phillips Velo PDA... It appears to be two #NiMh cells tap-welded together, with a conductive band close to one end that has a lead going to this mid-point, presumably so the PDA knows it's allowed to recharge this one.

I'd like to recreate it, if possible...

Youth with conduct disorder show widespread differences in brain structure
https://www.nih.gov/news-events/news-releases/youth-conduct-disorder-show-widespread-differences-brain-structure
#ycombinator #Youth_with_conduct_disorder_show_widespread_differences_in_brain_structure_NIH #NIMH #study #research #conduct_disorder #youth #widespread #differences #brain_structure

PS: Once you revive a dud battery, it won’t have a great capacity. You can generally get back some of that by cycling it a few times.

I use the Opus BT-C3100 which is a handy device for all sorts of rechargeable chemistries and form factors, including 1865s.

My opus has a refresh option which will do three cycles automatically.

#DIY #rechargablebatteries #NiMH #ProTip

If your rechargeable batteries won’t charge, don’t give up hope. Modern chargers require the battery to have some small bit of voltage to start charging. So if you connect (in parallel +,+ and -,/-) a dud to a good battery for 30 seconds or so, that might be enough.

I built this simple rig and went through a dozen duds and got most of them to bounce back enough to get my Opus to take them. Huzzah!

#DIY #rechargablebatteries #NiMH #ProTip

NETRAMARK ANNOUNCES COLLABORATION AGREEMENT WITH NIMH TO ANALYZE CLINICAL TRIAL DATA ON THE USE OF KETAMINE IN PSYCHIATRIC DISORDERS (2024) https://finance.yahoo.com/news/netramark-announces-collaboration-agreement-nimh-123000754.html #ketamine #psychiatric #research #psychedelic #psychedelicresearch #psychedelics #nimh

Fellow battery geeks - what do you think about the MC3000? https://www.skyrc.com/MC3000_Charger
#battery #nimh

My DIY trickle #NiMH charger is complete.

I used a battery box from 5V led strip lighting to hold the batteries.

Putting my meter in circuit it read mid 60's milliamp charge per battery.

Here are two pictures. One is me testing it with croc clips connected and the other with permanent USB connection and lots of hotmelt glue holding things in place.

#electronics

So, #Battery question:

I am buying my mom some LED candles for #Christmas.

https://www.amazon.com/dp/B06X3VQRC7/?tag=best-flameless-candles-20&asc_source=browser&asc_refurl=https%3A%2F%2Fwww.bobvila.com%2Farticles%2Fbest-flameless-candles&ascsubtag=0000BV0000146510O1280056720221203130309%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20

And I want to buy rechargeable batteries for them. I already have this recharger: https://www.amazon.com/Panasonic-K-KJ17MCA4BA-Individual-eneloop-Rechargeable/dp/B00JHKSMJU/ref=sr_1_2_sspa?crid=1AR2N1828AMSX&keywords=eneloop+charger&qid=1670078508&sprefix=endloop+recarger%2Caps%2C63&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzRjVRRDBIWDE3MjhEJmVuY3J5cHRlZElkPUEwOTI2ODAzMU5VNEhHWURLWlZQMCZlbmNyeXB0ZWRBZElkPUEwNzU3ODc4M0JFMFpMRTZCS0FZOSZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Should I buy more Endloop batteries? Or will cheaper ones not explode in this?

I'm considering either these EBL: https://www.amazon.com/EBL-Rechargeable-Batteries-Performance-Pre-Charged/dp/B08P1RXCWH/ref=sr_1_29_sspa?crid=30I2RTE9DTYXW&keywords=aa+batteries&qid=1670077933&refinements=p_n_feature_browse-bin%3A23876358011%2Cp_n_feature_two_browse-bin%3A23534435011&rnid=23534200011&s=hpc&sprefix=aa+batteries%2Caps%2C65&sr=1-29-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyWlI5N0lTSzJBMzFVJmVuY3J5cHRlZElkPUEwODkyOTg0MkNHSlBRMExSNDlRRyZlbmNyeXB0ZWRBZElkPUEwNTUyMDcyM0JWNlI1TVBRWk0yRCZ3aWRnZXROYW1lPXNwX2J0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Or these...Tanatare: https://www.amazon.com/Tanatare-Rechargeable-Batteries-Recharegeable-Pre-charege/dp/B095HR4Y53/ref=sr_1_25?crid=30I2RTE9DTYXW&keywords=aa+batteries&qid=1670077933&refinements=p_n_feature_browse-bin%3A23876358011%2Cp_n_feature_two_browse-bin%3A23534435011&rnid=23534200011&s=hpc&sprefix=aa+batteries%2Caps%2C65&sr=1-25

Any advice?

#NiMH
#RechargeableBatteries
#Rechargeable
#Question

#introduction 👋
I’m a neuroscientist & artist. I got into the brain biz from making art—it’s like running #vision experiments on yourself. #Color is an obsession, it connects the physical world with #perception, #cognition, society, so I think it’s a great tool to understand us. I taught #neuroscience at #wellesley, ran a lab at #MIT & now at #NIH #NEI #NIMH. #Science happens in teams & diversity improves teams, so I really value #diversity in science, at all levels, of all kinds. #watercolor

Save An Old Drill From Landfill, With Some Lithium-Ion Magic - What do you do, when your trusty cordless drill starts to lose battery capacity? You bought it a d... more: https://hackaday.com/2019/03/27/save-an-old-drill-from-landfill-with-some-lithium-ion-magic/ #cordlessdrill #toolhacks #li-ion #nicd #nimh