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acc

Advanced Charging Controller

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Advanced Charging Controller

GitHub

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Also in these discussions

topjohnwu/magisk · linked in 2 of the same discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

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HN mentions by year15 dated mentions

Observed mentions: 2021-01-30 15:56:06 UTC to 2026-01-26 03:15:12 UTC.

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

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Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	2	0	2
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	2	1	1
2023	2023-01-01 00:00:00 UTC	2024-01-01 00:00:00 UTC	6	0	6
2024	2024-01-01 00:00:00 UTC	2025-01-01 00:00:00 UTC	3	0	3
2025	2025-01-01 00:00:00 UTC	2026-01-01 00:00:00 UTC	1	0	1
2026 (partial)	2026-01-01 00:00:00 UTC	2027-01-01 00:00:00 UTC	1	0	1

What Hacker News says

15 sources

greentea23·Jan 26, 2026

One of the biggest reasons I still prefer to root my phone is to use acc https://github.com/VR-25/acc. It's criminal that you have to root to run code that reduces charging speed or shuts the phone down automatically. I have it shut down at 20% and charge to 80% except when I know I will need to be out for an extended period without a charger.

In BU-808: How to Prolong Lithium-based Batteries (2023)

chasil·Jan 29, 2025

Unless your Pixel 4a is from Verizon (locked), keep it. Unlock the bootloader, then install LineageOS, MindTheGapps, and Magisk. Once you have Magisk stabilized, install the Advanced Charging Controller, and configure it to halt charging at 80%. That should solve your problems, and turn the updates back on. I don't think there is a way to make Google Pay work in this configuration, which is a drawback. I can put all the URLs here if you ask. Edit: https://lineageos.org/ [I did not remember that Lineage hosts gapps images] https://wiki.lineageos.org/gapps/ [IIRC, the APK is renamed to a ZIP and flashed with recovery, then name it back and install the app] https://github.com/topjohnwu/Magisk/releases/tag/v28.1 https://magiskmanager.com/ https://github.com/VR-25/acc/releases/tag/v2023.10.16

In Google Pixel 4a's old firmware is gone, trapping users on buggy battery update

greentea23·Dec 6, 2024

You can run these commands to turn that kill behavior off: setprop persist.sys.fflag.override.settings_enable_monitor_phantom_procs false /system/bin/settings put global settings_enable_monitor_phantom_procs false Termux as an example supports several services that run forever. Works great, sshd and crond don't get killed for example. https://wiki.termux.com/wiki/Termux-services Battery wise you can use this app to keep it in a healthy range and temperature indefinitely: https://github.com/VR-25/acc

In Install postmarketOS on Android phone and use Docker as a home server

chasil·Jun 21, 2024

On Android, I use the "Advanced Charging Controller" module for Magisk. If you have some way of rooting your phone and installing Magisk: https://magiskmanager.com/ Then you can download the ACC module and set it to halt charging at 80%: https://github.com/VR-25/acc This functionality should be native to Android and iOS. Yesterday.

In How to prolong lithium based batteries

perlclutcher·Mar 11, 2024

GOS's limited device support is disappointing, but I understand their reasoning. I still wish they'd release "GrapheneOS Minus" (in the vein of uBlock Origin Minus[0]) so a much larger audience could have 95% of the security benefits they'd have on Pixel hardware. As an alternative to replaceable batteries you could consider installing something like acc[1] to mitigate stress on your battery. My phone is 7 years old and the original battery still holds a charge like the day I bought it. [0]: https://github.com/uBlockOrigin/uBlock-issues/discussions/22... [1]: https://github.com/VR-25/acc

In GrapheneOS finds Bluetooth memory corruption via ARM MTE

sprokolopolis·Nov 21, 2023

On Android, I use a terminal script called Advanced Charging Controller (ACC) to automate keeping the battery under 80% and some other battery saving tweaks. It allows you to charge to any value (like 80%), then stop charging until it discharges to another set value, which triggers it to start charging again. That was you can keep it between something like 70% and 80% while you leave it charging over night. It also has settings to keep the batter under a specified temperature and trigger cool-down intervals if it gets to a particular temperature. It can use a job scheduler to switch between different profiles for different days, or events. There are also some frontend apps, which let the user control the script with a more friendly GUI ("AccA" or "ACC Settings"). Link to the script: https://github.com/VR-25/acc This does require root per

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missions, though.

In Charging a lithium battery to 80% only?

Semaphor·Oct 19, 2023

That is AccA though, the unofficial frontend. You still need the actual acc app: https://github.com/VR-25/acc/

In The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

chasil·Jul 2, 2023

You can reduce this risk with a Magisk module known as the "Advanced Charging Controller." This tool will allow a limit to be placed on the charging percentage; I have my phone set at 80%, so the battery never spends time at 100% charge which is the most damaging. https://themagisk.com/advanced-charging-controller-acc/ https://github.com/VR-25/acc

In 64bit computing on a budget

onli·Mar 3, 2023

This seems to be partly a Lineage problem - with probably some Android culpability mixed in. Lineage had their own very simple to install superuser addon, but that was dropped a few versions ago. Some Android changes prompted this, but probably also their attitude against rocking the boat (no rooting, no signature spoofing, etc). The remaining solution was Magisk. Magisk was equally easy to install, but recently deprecated that easy install method so that only patching the ROM file remains (you get that file from the ROM you run, unpack the archive, if you are unlucky you need to unpack a second payload.bin file, https://wiki.lineageos.org/extracting_blobs_from_zips#extrac...). But not only is that more complicated, it also does not persist after a Lineage upgrade, which happens every week, see https://github.com/topjohnwu/Magisk/issues/3

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820#issuecomment.... Totally crazy for a project not in early alpha. I want root to properly manage my battery via https://github.com/VR-25/acc ( with ideally https://github.com/MatteCarra/AccA as Magisk module). How ridiculously complicated that is now and that the install procedure is broken without them documenting it soured me quite a bit on Magisk, but I also start to develop some bad feelings about Lineage - because it is them that would be in the best position to provide a simple root solution. But they just refuse it, and even forbid discussing such topics on their subreddit - that alone shows me that the project is very user hostile currently. I doubt with that attitude they can make a turnaround, but I'd be happy to be wrong... Sadly the other bigger ROMs are to my knowledge not better in this category, neither /e/ with their service suite, nor DivestOS with the passionate developer nor CalyxOS or GrapheneOS with their "security" focus are interested in giving the user full access to their device. Android seems to be a dead end here, real Linux is needed.

In New F-Droid repository format for faster and smaller updates

Semaphor·Feb 10, 2023

On rooted android you can use Advanced Charging Controller (ACC) [0] to control at what levels to charge. I use it to exchange normal capacity for longevity. [0] https://github.com/VR-25/acc/

In Junkyard computing – repurposing discarded smartphones to minimize pollution

IronHerald·Feb 2, 2023

There's also the possibility of using Advanced Charging Controller - though it requires root. Essentially you can set it up so when the battery reaches eg. 100% it stops charging, and resumes only once it reaches eg. 15%. Surprisingly the Android devices that I have still don't ever stop charging on their own, constantly keeping 100%. [Advanced Charging Controller (ACC)](https://github.com/VR-25/acc) [BU-808: How to Prolong Lithium-based Batteries](https://batteryuniversity.com/article/bu-808-how-to-prolong-...)

In How to control your smart home without yelling at a dumb voice assistant

sanroot99·Aug 27, 2022Submission

Advance Charging Controller for Android

4 points · Open discussion

mizzack·Jun 23, 2022

I use a Magisk module called ACC (https://github.com/VR-25/acc) to set the charge/discharge range to be between 60-75% for my permanently connected old phone. I'm using it to show a Grafana dash of my computer's resources.

In Repurposing an old Android phone as a web server

GhettoComputers·Nov 13, 2021

Keeping them within a certain range is useful but not as much as preventing them from overheating, heat and fast charging is more dangerous, basically if you limit them to 80% it will prevent trickle charging, you can do this in hardware by monitoring the speed it charges at and shutting off when it lowers with wattage monitoring equipment. Apple has this as well, and every lithium charger has trickle charging at 80%, but not all of them are able to end charging at this percentage. https://linrunner.de/tlp/settings/battery.html https://support.apple.com/en-us/HT210512 The best implimentation from my understanding is this one under android. https://github.com/VR-25/acc By hack I mean a bypass versus your meaning of attacking the security and removing DRM, is there a reason you can't just use another chip or anything special its doing? Do y

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ou need the CPU and is the cryptography documented enough to make it easy or woth the effort? It may also be a passion project so I understand if you just want to do it to do it, and even share the information. If it is battery charging features if they're important are not special. The last 20% makes extra cycles and is the most stressful. https://batteryuniversity.com/article/bu-409-charging-lithiu... >Turn off the device or disconnect the load on charge to allow the current to drop unhindered during saturation. A parasitic load confuses the charger. >Charge at a moderate temperature. Do not charge at freezing temperature. (See BU-410: Charging at High and Low Temperatures) >Lithium-ion does not need to be fully charged; a partial charge is better. Not all chargers apply a full topping charge and the battery may not be fully charged when the “ready” signal appears; a 100 percent charge on a fuel gauge may be a lie. >Discontinue using charger and/or battery if the battery gets excessively warm. >Apply some charge to an empty battery before storing (40–50 percent SoC is ideal). (See BU-702: How to Store Batteries.)

In Show HN: Long Range E-Bike

arsome·Jan 30, 2021

If you're a tinkerer, I'd seriously recommend using something like ACC (Advanced Charging Controller). It'll automatically cut your charge off at ~80% and slow the charging if it's heating up too much. Should greatly extend the service life of your battery. You can pretty much just install with Magisk and forget it. Perhaps it's too late for your current phone/battery but maybe on the next one. https://github.com/VR-25/acc Pair with something like AccuBattery for visibility into battery capacity over time.

In OnePlus 6 and OnePlus 6T seeing work for mainline Linux kernel support