IRC log of #maemo for Monday, 2019-08-26

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KotCzarnyhmm, my n900 charger outputs 5.4V18:25
KotCzarnynot good18:25
sicelooriginal?18:27
KotCzarnyYUP18:27
KotCzarnyfew months ago it was ~5.05-5.10V18:27
siceloeven with a load?18:27
KotCzarnywith load it drops to 5.3V18:28
KotCzarnywhich is out of spec. and some time ago i lost a ssd drive due to some other usb device outputting 5.35V18:28
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sixwheeledbeastmy 10 year old charger is 5.02 dropping to 4.99 with an N900 on it.19:42
KotCzarnymine was fine too, when i last checked it19:43
KotCzarnywhich was few months ago19:43
sixwheeledbeastsome smoothing component my have failed taking it over spec? I had a cheap usb car charger that outputted 5.45 I didn't know about it until I tested it recently. I would only use it in an emergency when the device was nearly empty but still not ideal.19:45
KotCzarnythat's probable, anyway, anything over 5.25V WILL fry devices over time19:46
sixwheeledbeastIf certain the tester is true then I suppose it's time for a new charger.19:51
KotCzarnyyes, checked on 2 other usb sources (thinkpad port and opipc port)19:52
KotCzarnyboth ~5.0-5.1V19:52
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sixwheeledbeastMaybe a 10m uUSB extension lead would have enough voltage drop :P19:53
KotCzarnygood thing i've found out it's breaking down19:53
KotCzarnynah, probably it will get worse over time19:53
KotCzarnyi will keep the charger for unimportant uses19:54
KotCzarnyso, lesson for today, measure your chargers/psus from time to time folks!19:54
sixwheeledbeastI have only recently got a USB tester and for the price they are well worth keeping in your toolbox. I have found several bad devices.19:54
KotCzarnyyup19:55
KotCzarnyi bought me 2 over time19:55
KotCzarnythe latest is the blueish with white display19:55
KotCzarnypretty nifty, shows all the info at once19:55
sixwheeledbeastThe one I have measures mAh. so if you reset it you can measure capacity too.19:56
KotCzarnyyup19:56
KotCzarnyhttps://www.aliexpress.com/item/32455167954.html?spm=a2g0s.9042311.0.0.1ec64c4dGGVxCT19:58
KotCzarnythis one19:58
KotCzarnythere are newer models already, but this one goes dirt cheap and is nice19:59
KotCzarnyand can go up to 3A19:59
sixwheeledbeast this is 7seg but i believe goes upto 27vdc20:01
KotCzarnyand it seems some sale event is on aliexpress20:02
KotCzarnyso, grab your usb meters now folks20:03
sixwheeledbeasthttps://www.banggood.com/Digital-Display-USB-Multifunction-Tester-3V-30V-Mini-Current-Voltage-Charger-Capacity-Tester-p-1079409.html?cur_warehouse=CN20:04
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sixwheeledbeasthaving uUSB in aswell as A is useful20:09
KotCzarnyfor testing uUSB cables, yes20:09
KotCzarny:)20:09
KotCzarnyunless you have some otg port that can be put in host mode20:10
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