On the Wisdom of Replacing a NiMH Module in a Prius Battery Pack

https://fed.brid.gy/r/https://hackaday.com/2026/06/01/on-the-wisdom-of-replacing-a-nimh-module-in-a-prius-battery-pack/

For deployments where lithium batteries are not acceptable, I am testing 3S #nimh accumulators.

The #liion charger in #rakwireless is configured for 4.2v max and that is 3x 1.4v. Per https://goughlui.com/2019/04/14/experiment-charging-ni-mh-batteries-with-constant-voltage/ and https://www.ti.com/lit/an/slyt468/slyt468.pdf it might work just fine.

There are interesting cells available like https://camelion.com/product/camelion-ni-mh-hr20-d-10000mah-1-2v-bp2/

3S AAs fit into the operating envelope of the board. I need to test charging later. Just beware: always ready cells do not like trickle charging.

#meshcore #offgrid

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

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

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

Voltcraft CM 2016: Endlich eine Linux-GUI für das Ladegerät

https://www.kernel-error.de/2026/03/21/voltcraft-cm-2016-linux-gui-ladegeraet-gtk4-python/