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
Wie Menschen #Materialien wahrnehmen: Nur 36 Dimensionen wie Körnigkeit, Bläue und Viskosität sind nötig, um Materialien zu erfassen, zeigt eine Studie von Wahrnehmungsforschenden der #JLU, des #MPICBS in Leipzig und des #NIMH (USA) #Wahrnehmungsforschung https://www.uni-giessen.de/de/ueber-uns/pressestelle/pm/pm29-25materialienwahrnehmen
#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/
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)
Het valt niet mee, tegenwoordig, om batterijen op te laden. Er zijn zó veel types bijgekomen... alleen bejaarden kennen waarschijnlijk nog de NikkelCadmium batterijen, NiMH is ook al gepensioneerd aan het raken en van Lithium zijn allerlei soorten.
Goed.
Gedoe.
Dus ik koop een superduper luxe acculader die van NiCad's tot aan LiFePo's weet.
Hop, batterij er in.
Mja.
Batterijlader twijfelt zelf ook, dus hij en ik kunnen het meteen goed vinden samen.
#onzin #batterijen #NiMH
Got some cheap solar lamps for the garden gate. These always come with featherlight NiMH batteries of dubious capacity.
Best to replace with some good ones from Lidl (Tronic) that actually deliver near their stated 2300 mAh capacity.
Probably enough to keep the dim white LED going for a few days of darkness.
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.
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!
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
The Process of 'NIMH'
Don Bluth's masterpiece + news.
by Animation Obsessive @ani_obsessive
Feat.: The Boy and the Heron, The Hyperboreans, Ghost in the Shell 2: Innocence, Chihuahua, The Millennium Actress Archives +
#animation #DonBluth #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.
Just trickle charged a really old #NiMH AA battery using a USB connector with crocodile clips on +ve and -ve. The -ve clip goes on the bottom of the cell and the +ve clips onto a little circuit with 1 diode, 3 resistors and an LED. The Diode gets the +ve clip and the 'bottom' of the circuit makes contact with the top (+ve) end of the battery. It is held on by an elastic band as is the -ve clip to bottom of the battery.
#electronics
I am trying to implement reverse polarity protection for a circuit powered by two NiMH cells.
Using a Schottky diode is too wasteful at such low voltages. It seems a MOSFET is the way to go, and after a deep dive in the Digi-Key parametric search, I think I have found a winner: DMN1019USN.
It is a 12V N-channel MOSFET that has only 41 milliohms when activated with 1.2V at the gate 
"Since 2000, NIMH has spent almost $8 billion in pursuit of this goal. Not a single gene has been found that can be causally linked to #schizophrenia & the research has produced no improvements in treatments." https://www.sciencedirect.com/science/article/abs/pii/S0165178123006418 #gwas #genomics #nimh
Old Prius Gets Upgraded Batteries https://hackaday.com/2023/12/18/old-prius-gets-upgraded-batteries/ #TransportationHacks #nickelmetalhydride #replacement #battery #lithium #vehicle #hybrid #prius #nimh #car
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