libera/#maemo/ Friday, 2020-05-22

ShadowJKThe contrast between english speaking world and the rest is pretty stark01:02
ShadowJKI was dealing with an industrial supplier in Italy, fully expecting that there'd be no issue communicating in english in europe01:03
ShadowJKThen they kinda fucked up their email replies. The engineer I was talking to, in his email reply, accidentally quoted the 3 different translators he had been emailing to figure out what I was saying :(01:04
ShadowJKI should have known it was suspicious when they were replying in less broken english than the germans usually do...01:05
ShadowJK(germans dont use translators, they just write german if they dont know english words)01:05
ShadowJK:D01:05
luke-jryikes, what were you saying⁇ lol04:49
MaxdamantusHmm .. yeah, this N810 lighter socket charger seems to be putting out voltages that seem very suspicious to me.12:57
MaxdamantusWhen it's not plugged in, it puts out 11.65 V (input voltage is around 12.6 V, so it's not directly connected)12:58
KotCzarnyo.O12:59
Maxdamantus22:59:02 < Maxdamantus> it's Nokia-branded, and it says "5.7 V/890 mA"13:04
Maxdamantus22:59:53 < Maxdamantus> when I plug the N810 in, it drops to 3.something then goes up to 5.7 then after a couple of seconds the N810 says "Not charging" and it goes back up to 11.65 V.13:04
Maxdamantus23:01:37 < Maxdamantus> I remember when I was measuring the current draw yesterday, it wasn't drawing any current after that "Not charging" message, so presumably either the device is meant to handle that seemingly high voltage, or there's some overvoltage protection or something, dunno.13:04
KotCzarnymost likely13:04
Maxdamantushttps://web.archive.org/web/20110531222503/http://nds2.fds-forum.nokia.com/p/d/fds_forum/3378ff2b-4016-42b9-9118-d59e4313a521/Nokia_2-mm_DC_Charging_Interface_Specification_v1_2_en.pdf/Nokia_2-mm_DC_Charging_Interface_Specification_v1_2_en.pdf?fdptoken=1306967098_2c47fdedb1bcfc3318988c97352b2b2e13:06
KotCzarnyso that initial peak is for identification?13:09
KotCzarnystill, it shouldnt go over 9.xV13:09
KotCzarnymaybe you have some fake charger?13:10
MaxdamantusYep, seems to be all working if I just keep it around 5 V at the output.13:10
Maxdamantus\o/13:11
MaxdamantusDoesn't seem like it would be fake. I think it's just faulty.13:16
MaxdamantusWouldn't imagine someone would bother faking the Nokia brand on a charger.13:17
Maxdamantusand it doesn't seem like a cheap PCB inside.13:17
VajbTypical behaviour in cheap non regulated chargers. Voltage settles to correct amount when sufficient load is connected13:21
Maxdamantushttps://i.imgur.com/x7PhO8r.jpg13:21
VajbI've seen this in old car battery chargers at least13:21
MaxdamantusI'm not particularly experienced with electronics, but I don't think that looks like some ripoff of a Nokia charger.13:22
VajbMe neither. Just some observation I've made13:26
KotCzarnyquick google says there are multiple 'dc-4' versions, lol13:28

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