2023-07-20.log

- mjw (QUIT: Ping timeout: 250 seconds) (~mjw@gnu.wildebeest.org)01:30
+ yewscion (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)01:49
- mtm (QUIT: Ping timeout: 245 seconds) (~mtm@c-71-228-84-213.hsd1.fl.comcast.net)02:02
- S0rin (QUIT: Ping timeout: 272 seconds) (~S0rin@user/s0rin)02:14
+ S0rin (~S0rin@user/s0rin)02:20
- S0rin (QUIT: Ping timeout: 246 seconds) (~S0rin@user/s0rin)03:05
- yewscion (QUIT: Read error: Connection reset by peer) (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)03:07
+ S0rin (~S0rin@user/s0rin)03:09
+ mtm (~mtm@c-71-228-84-213.hsd1.fl.comcast.net)04:08
- vagrantc (QUIT: Quit: leaving) (~vagrant@2600:3c01:e000:21:7:77:0:50)04:37
pandora[m]<josch> "i'm now draining them to zero..." <- Don’t do that! U will damage them! Cycle ur batteries and then match them by capacity 05:40
joschpandora[m]: hm? what do you mean?06:43
joschhow will getting down to zero damage my cells?06:45
pandora[m]https://community.mnt.re/t/battery-is-not-charging/270/6307:22
pandora[m]U start to change the battery chemically07:22
joschpandora[m]: how is this post relevant to my situation? My cells never were reversed and never under 2.5 V.07:26
JC[m]I was typing out a response regarding the dangers of exceeding the recommended depth charge for certain battery chemistries, but now I'm confused. You mentioned "getting down to zero" where I assume you mean 0V, but now I see that they didn't go under 2.5V. I haven't caught up on this thread in a while, so maybe I'm missing some context.07:28
joschmy problem was, that my reform switched off when the oled display still showed 35% charge remaining07:30
joschat that point, two of my cells were down to 2.7 and 2.5 V, respectively while the rest was at 3.2 V07:30
JC[m]Oh ok, sounds typical with my experience.07:31
JC[m]Haven't experimented lately, though.07:32
joschso i replaced those two cells and tried getting back to zero07:32
joschwhich worked!07:32
JC[m]The references to zero (assuming 0V) is the concerning part. It's good if you can resuscitate the batteries (hence my post in the thread linked above) but generally comes with a long list of hazards, so it's not good practice to deplete them too low if it can be avoided.07:37
joschoh07:38
joschi didn't mean 0 V07:38
joschi meant 0 %07:38
joschas i mentioned here yesterday, the lowest volatage was 2.5 V07:39
JC[m]Ok cool07:39
JC[m]Just had the ! go off during passive scrolling lol07:39
joschi also have the new battery boards, so my cells shouldn't go down too far anyways07:40
+ yewscion (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)08:26
- yewscion (QUIT: Remote host closed the connection) (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)08:26
+ yewscion (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)08:27
- yewscion (QUIT: Remote host closed the connection) (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)09:05
pandora[m]Oh sorry I thought u meant 0V09:44
pandora[m]It sounds that two of ur cells just degraded quicker than the other ones. It is still best to measure the capacity and re-match them to get consistent readings.09:49
pandora[m]If u use cells with different capacities,their voltage will collapse at different times and u will have a laptop that shuts off above 0%09:49
- klardotsh (QUIT: Ping timeout: 272 seconds) (~klardotsh@98.97.112.82)10:33
+ mjw (~mjw@gnu.wildebeest.org)10:45
+ yewscion (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)10:53
- yewscion (QUIT: Remote host closed the connection) (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)11:27
- XYZ_ (QUIT: Remote host closed the connection) (~XYZ@37-48-48-59.nat.epc.tmcz.cz)11:43
+ XYZ (~XYZ@37-48-48-59.nat.epc.tmcz.cz)11:46
- mjw (QUIT: Ping timeout: 272 seconds) (~mjw@gnu.wildebeest.org)12:22
* mark_ -> mjw12:51
- mtm (QUIT: Ping timeout: 246 seconds) (~mtm@c-71-228-84-213.hsd1.fl.comcast.net)14:02
- ajr (QUIT: Quit: Connection closed for inactivity) (uid609314@user/ajr)14:22
noamI plugged in the reform last night, unplugged it this morning, and it failed to turn on [system controller was looping]. okay, fine, plugged it in, checked the battery levels and >6V overall15:00
noam:(15:00
noamGuessing the batteries were like this last night and I didn't notice :/15:01
abortretryfailI wonder if I should stock up on spares. These are very cheap. https://batteryhookup.com/products/copy-of-100-a123-18650-apr18650m1b-1100mah-lifepo4-batteries-new15:03
noamO_o15:05
noamI was just looking for new ones and couldn't find any *anywhere*15:05
noamDo you know for sure that those are legit?15:05
noamBecause the pricing isn't just "cheap", it's "implausibly cheap"15:05
abortretryfailThey're a surplus/auction house. Everything they sell is cheap but odds are it won't be there in a week or two.15:06
noamAhhh okay15:08
noamO_O https://batteryhookup.com/products/300-pounds-of-modem-batteries-2400-18650-cells-1315:08
abortretryfailThe medical CR2032s I got there worked. 15:08
noamCould bid on 300 sets of reform batteries O_o15:08
minutethese look cool, just 1100 mah is a bit smol capacityt15:08
abortretryfailYeah, the kind of thing that gets to put into service and then changed out on a schedule regardless of how it wears15:08
noamThey claim you can reasonably expect >90% of those to work15:08
noamminute: yeah, but given that it's impossible to find *any* anywhere else...15:08
abortretryfailminute: yeah, not great for long run time. I think they're for high current applications, but it's so cheap i kinda want to get some just to have extras lol15:08
minutefor the "modem batteries" i don't see chemistry? perhaps not lifepo?15:09
minutehttps://www.batteryspace.com/LiFePO4-18650-Rechargeable-Cell-3.2V-1800-mAh.aspx15:10
minutethis says "in stock"15:10
minute1800 mah, no tabs15:10
minutenoam: which country do you need the batteries in?15:10
noamUSA15:12
abortretryfailthose modem batteries are probably Li-Ion. Tbh i think they expect the target market knows what to look for and how to test them. 15:15
abortretryfailI've been salvaging cells from old laptop and power tool packs for a while now and I use them in all my flashlights and a few USB chargers and stuff for radios15:16
minutenoam: so batteryspace should be fine then15:22
abortretryfail^ good plan. :)15:36
noamVoltage is slowly going up...15:38
noamACTION crosses fingers15:38
noamIt's at ~9V now, was at ~5V when I plugged it in ~30 minutes ago15:38
+ mark_ (~mjw@gnu.wildebeest.org)15:40
noamI... I'm kinda worried this might be a battery connection problem, again :/15:42
abortretryfailHopefully it's a loose connection and not a cell with an internal short15:44
noamThe only other battery issue I had was a trace on the board that fried due to a loose screw shorting it15:45
noamIt's... possible the solder job there wasn't good enough, and came undone?15:45
noamI'll need to check15:45
abortretryfailoh... uh, maybe don't charge any batteries with that machine until you have checked for damaged components.15:46
+ vagrantc (~vagrant@2600:3c01:e000:21:7:77:0:50)15:56
- mark_ (QUIT: Ping timeout: 260 seconds) (~mjw@gnu.wildebeest.org)16:07
noam...that's probably a good idea16:08
+ mtm (~mtm@c-71-228-84-213.hsd1.fl.comcast.net)16:08
minutejosch: we're working on porting neo2 to kbdv3 and wondering about alt+mod4 placements. should these be there? https://chat.mnt.re/files/7a31k3jtktnuxrar1zaja4jpkr/public?h=7sXxIBLGkQSusI5IHVWONac7h7MJkFXlzppnfzsvjyk17:11
- cwebber (QUIT: Ping timeout: 245 seconds) (~user@user/cwebber)18:06
+ cwebber (~user@user/cwebber)18:15
violetgoing into the buildroot abyss to try and get vulkan working on my iMX8M lol18:17
- nocko_ (QUIT: Quit: WeeChat 3.6) (~nock@user/nocko)18:18
+ mark_ (~mjw@gnu.wildebeest.org)18:28
violetmuahaha i have the userspace blob and the kernel module code18:58
violeti am wondering if maybe i can get hwaccel in firefox to work with this + zink19:00
minuteviolet: you want to use the vendor kernel?19:10
minuteviolet: do they have mnt reform2 dtb?19:10
violethell no im not gonna use the vendor kernel19:10
violetxD19:11
minuteviolet: you want to port the vivante kernel driver to mainline?19:11
minutei wonder how (in)compatible it is19:11
violetthey have a module that maybe builds against mainline allegedly19:11
minuteoh? :019:11
violetim about to find out19:11
violeti dont remember how to build kernel modules though so i gotta remember how to do that19:12
minutemake modules19:12
violetno i mean for an out of tree module lol19:12
minuteor with out of tree something with make M=...19:12
+ ajr (uid609314@user/ajr)19:14
violetaw darn a bit of it compiled but not all of it19:18
violetgc_hal_kernel_allocator_gfp.c:774:19: error: assignment of read-only member ‘vm_flags’19:18
violetgrrrr19:18
violetwell maybe i can figure out how to fix it later19:19
violetoh wait i didnt notice there are other branches on this git19:20
minuteviolet: plan a day or two for it :D19:20
- GNUmoon2 (QUIT: Remote host closed the connection) (~GNUmoon@gateway/tor-sasl/gnumoon)19:23
+ GNUmoon2 (~GNUmoon@gateway/tor-sasl/gnumoon)19:24
- S0rin (QUIT: Ping timeout: 245 seconds) (~S0rin@user/s0rin)19:25
- mjw (QUIT: Killed (NickServ (GHOST command used by mark_!~mjw@gnu.wildebeest.org))) (~mjw@2001:1c06:2488:1400:4fd:39a7:74ac:7bae)19:54
* mark_ -> mjw19:54
+ mark_ (~mjw@2001:1c06:2488:1400:4fd:39a7:74ac:7bae)19:54
+ klardotsh (~klardotsh@98.97.112.82)20:11
violetgrrr. requires busfreq-imx20:16
violet*considers using vendor kernel* they are on 6.1, not the worst thing20:18
violetway better than rockchip >.> but i do not like using vendor kernels usually20:19
minutehere be dragons20:22
violethow bad could it be20:34
violetupdate: driver theft is hard i am not going to try and extract the busfreq driver20:47
violetnot now anyway20:48
violetmaybe i will try vendor kernel later but i do not want to think about dtbs today20:49
joschminute: those key placements look good, thank you!20:58
minutejosch: cool, thanks!20:59
joschminute: you expect that one of your two neo2 customers will buy a kbdv3? ;)21:01
- jacobk (QUIT: Ping timeout: 246 seconds) (~quassel@47-186-110-219.dlls.tx.frontiernet.net)22:29
+ yewscion (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)22:47
noamThe heck?23:14
noamIt claims to be using power while off23:14
noammight explain how the cells all got damaged23:14
noamor might be a symptom :/23:14
noamgoing to need to test each cell with a multimeter or something to get a baseline23:14
noamand then probably use a circuit tester to make sure the battery boards are in good shape23:15
- buckket (QUIT: Quit: buckket) (~buckket@vps.buckket.org)23:21
ex-parrothello noam 23:22
+ buckket (~buckket@vps.buckket.org)23:22
ex-parrotoh nm, someone ele already made the same comment I was gonna23:23
ex-parrotas you were23:23
noamHm?23:25
noamAh, lemme guess23:25
noam"Maybe don't charge it?"23:25
noamminute: the batteries you linked are in stock, but only *barely*.23:41
noamLooks like they have exactly _seventeen cells_ in stock23:42
abortretryfailnoam: you see it has a current draw even when powered off?23:52
noamThe system controller reports one23:56
noamIn the brief seconds before the voltage plummets too low and it shuts off entirely23:56
noam[I had it plugged in earlier, then decided that was stupid and unplugged it]23:57
noam[after unplugging it, it reported a current draw of ~0.03A while entirely unpowered]23:57
noamAnd: first cell tested reports a voltage of ~1V.23:57
noamsooooo yeah23:57
- yewscion (QUIT: Remote host closed the connection) (~yewscion@2601:547:a01:2900:5c15:78d2:b913:fc63)23:57
noamyieks23:58
noamthe others are even worse :(23:58
noam0.9, 0.8, and 0.73V O_O23:58
noamah. annnnd 0.05V on one of them. Yeah, this is Bad.23:59

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