Comments on: A Battery Replacement And Maintenance On An Electronic Scale https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Wed, 26 Jul 2023 17:54:48 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: Waleed Rishmawi https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404570 Wed, 26 Jul 2023 17:54:48 +0000 https://jestineyong.com/?p=30534#comment-404570 In reply to Yogesh Panchal.

Yogesh. Thanks man. Yes totally agree with that. Have a blessed day.

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]]> By: Yogesh Panchal https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404471 Mon, 24 Jul 2023 07:08:13 +0000 https://jestineyong.com/?p=30534#comment-404471 Good Job! Waleed,
I come across few batteries which shows proper Voltage but not holding current...better way to check is to use another working battery for testing.

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]]> By: Waleed Rishmawi https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404468 Mon, 24 Jul 2023 05:55:32 +0000 https://jestineyong.com/?p=30534#comment-404468 In reply to Henrique J. G. Ulbrich.

Henrique: thanks man. usually the rated batteries here are usually 6 volts which power the LED emergency lights but 4.4 volts batteries are very hard to find. some time if these batteries are not found I use the 6 volts one. I did it once and so far no complain. have a blessed day

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]]> By: Waleed Rishmawi https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404467 Mon, 24 Jul 2023 05:52:45 +0000 https://jestineyong.com/?p=30534#comment-404467 In reply to Imoudu.O.

Imoudu: I do not like them either. the main problem is although there is battery in the device but it is never used (battery power) unless there is no main electricty avialable which put a lot of stress on the battery and end up drying up. have a blessed day

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]]> By: Henrique J. G. Ulbrich https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404443 Sun, 23 Jul 2023 17:29:35 +0000 https://jestineyong.com/?p=30534#comment-404443 Good maintenance work, Waleed. I had to deal with this lead-acid 4 V battery in the maintenance report https://jestineyong.com/battery-problem-in-head-lamp-retrofitted/ here at Jestine`s site. This type of 4 V battery is not found here in Brazil, so I had to make some modifications for the gadget to work with NiMh cells. Indeed, I understand well when you say it was a little bit hard to find it.

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]]> By: Imoudu.O https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404393 Sat, 22 Jul 2023 21:27:26 +0000 https://jestineyong.com/?p=30534#comment-404393 I personally don't like using devices using acid-lead batteries because they easily get shorted within short period of use.Thanks for sharing and have a nice day.

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]]> By: Waleed Rishmawi https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404361 Sat, 22 Jul 2023 08:23:08 +0000 https://jestineyong.com/?p=30534#comment-404361 In reply to Albert van Bemmelen.

Albert: totally agree with you. when it is dry on the inside you will hear the ratteling noise but I usually test it with a voltmeter and make sure it is taking a charge. thanks for your comments and have a blessed day

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]]> By: Albert van Bemmelen https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404353 Sat, 22 Jul 2023 07:15:58 +0000 https://jestineyong.com/?p=30534#comment-404353 The shaking battery trick probably works with this scale. Most bad lithium batteries however never make any sound at all when shaken. In those cases measuring the internal resistance of a battery is doable by finding out the current through the circuit. And dividing the emf of the battery by the current through the circuit.
And we subtract any load resistance from the value obtained from the previous step. And we know the internal resistance of our battery. If that is no longer possible we know the battery is bad. Or just use a charger that measures and shows that important resistance of the battery or each cell. Apparently it also can be measured with a good capacitor ESR meter. (Warning NOT every ESR meter can handle placing external voltages on its probes! Like most Arduino component testers that test all RCL components and semiconductors, including the ESR value of capacitors but won't survive any voltage higher than about 3V or its supply voltage on its inputs). But those ESR meters build without any cpu like the Blue ESR meter from AnaTek Corp will survive measuring any internal resistance of most charged batteries and even when measured on power supplies.

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]]> By: Waleed Rishmawi https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404348 Sat, 22 Jul 2023 05:35:19 +0000 https://jestineyong.com/?p=30534#comment-404348 In reply to Parasuraman S.

Parasuraman: thanks man. yes I ususally shake the battery and if sound is heard it is dry and need replacement. you are most welcome my friend. have a blessed day

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]]> By: Waleed Rishmawi https://jestineyong.com/a-battery-replacement-and-maintenance-on-an-electronic-scale/comment-page-1/#comment-404347 Sat, 22 Jul 2023 05:34:10 +0000 https://jestineyong.com/?p=30534#comment-404347 In reply to Anwar Yunas Shiekh.

Anwar: yes it is because that is the factcory charger so I did not bother with it and so far it is up and running. have a blessed day

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