User neverMind9

23 votes

6 answers

49k views

Does water actually damage or only temporarily disable electronics until drying out?

asked Jan 16, 2018 at 13:11

17 votes

4 answers

5k views

Is temperature the only battery charging speed limitation?

asked Jan 17, 2018 at 8:24

6 votes

2 answers

2k views

Flash storage: Limited read cycles?

asked Feb 18, 2018 at 17:33

3 votes

4 answers

1k views

Car battery (lead acid) discharges much, much faster than it charges?

asked Oct 1, 2018 at 15:53

1 vote

2 answers

244 views

Relation between terminal voltage and charging speed in Lithium-Ion batteries?

asked Oct 10, 2018 at 12:33

1 vote

3 answers

920 views

How to add 0.2V per Ampère that device draws? (Voltage drop compensation)

asked May 25, 2019 at 12:23

1 vote

1 answer

164 views

How come PC/laptop power suppliers have much higher wattages per physical size than laboratory switching power suppliers?

asked Jun 8, 2019 at 22:11

1 vote

1 answer

105 views

What happens when the AC frequency of the primary side of a linear power supply is too high?

asked Jul 17, 2019 at 12:11

1 vote

2 answers

156 views

USB NiMH charger keeps drawing same power forever?

asked May 12, 2018 at 11:09

1 vote

2 answers

254 views

Is fast charging a Lithium-Ion battery from 0% to 30% better or worse for the battery health than fast charging at 30% to 70%?

asked Jul 15, 2018 at 12:54

1 vote

0 answers

103 views

Why are 65W and 90W common amongst laptop power supplies?

asked Sep 15, 2018 at 14:31

1 vote

1 answer

49 views

Some battery-operated devices switch off when plugging in powerless cable or during insertion?

asked Feb 22, 2018 at 15:36

1 vote

1 answer

58 views

Powerbanks with multiple ports rated at different Amperage: technical difference?

asked Jan 17, 2018 at 6:00

1 vote

1 answer

906 views

Fast charging 2.0: 7V×2.5A, 9V×2A or 12V×1.5A?

asked Jan 17, 2018 at 7:35

0 votes

1 answer

30 views

Connecting power cable to device without enabled power supply = battery low?

asked Jan 17, 2018 at 1:54

0 votes

0 answers

45 views

Batteries have spare capacity when unused for minutes after running out? [duplicate]

asked Jan 17, 2018 at 2:00

0 votes

2 answers

28 views

Manually control smartphone power current drawing during charge?

asked Feb 4, 2018 at 10:46

0 votes

1 answer

121 views

Fast charging ports under the hood - technical details behind the standards? [closed]

asked Feb 13, 2018 at 22:25

0 votes

2 answers

852 views

NAND flash retention using USB charger?

asked Feb 14, 2018 at 21:13

0 votes

2 answers

487 views

USB charger limits: 9 V, 1.7 A but only 5 V, 2 A? Not exactly anti-proportional

asked Feb 18, 2018 at 13:26

0 votes

0 answers

49 views

Flash storage: How do I know the remaining writing cycles without relying on SMART?

asked Feb 22, 2018 at 18:28

0 votes

1 answer

146 views

PMR446 interferes with small electronics?

asked Mar 31, 2018 at 17:16

0 votes

2 answers

890 views

Voltage drop if power draw is too quick: Does it happen naturally or regulated?

asked Sep 16, 2018 at 21:09

0 votes

1 answer

100 views

Do full charges and deep discharges wear the battery because of terminal voltage?

asked Sep 18, 2018 at 17:48

0 votes

1 answer

482 views

How to measure internal battery pressure?

asked Jul 19, 2018 at 13:04

0 votes

1 answer

76 views

Does charging near maximum C rate have the same effect as high battery levels?

asked Jul 14, 2018 at 9:59

0 votes

0 answers

2k views

AMOLED display vs. LCD display: Power consumption when displaying white only?

asked Jul 15, 2018 at 1:36

0 votes

2 answers

181 views

Batteries have a constant charging speed from 0%→70% instead of being any faster at 0%?

asked Jul 15, 2018 at 10:10

0 votes

2 answers

156 views

Two 5V2A powerbanks draw different current under same conditions?

asked Nov 26, 2018 at 2:38

0 votes

1 answer

84 views

Which current can a multimeter measure for an indefinite duration?

asked Dec 18, 2018 at 12:25

Stack Exchange Network

34 Questions

Does water actually damage or only temporarily disable electronics until drying out?

Is temperature the only battery charging speed limitation?

Flash storage: Limited read cycles?

Car battery (lead acid) discharges much, much faster than it charges?

Relation between terminal voltage and charging speed in Lithium-Ion batteries?

How to add 0.2V per Ampère that device draws? (Voltage drop compensation)

How come PC/laptop power suppliers have much higher wattages per physical size than laboratory switching power suppliers?

What happens when the AC frequency of the primary side of a linear power supply is too high?

USB NiMH charger keeps drawing same power forever?

Is fast charging a Lithium-Ion battery from 0% to 30% better or worse for the battery health than fast charging at 30% to 70%?

Why are 65W and 90W common amongst laptop power supplies?

Some battery-operated devices switch off when plugging in powerless cable or during insertion?

Powerbanks with multiple ports rated at different Amperage: technical difference?

Fast charging 2.0: 7V×2.5A, 9V×2A or 12V×1.5A?

Connecting power cable to device without enabled power supply = battery low?

Batteries have spare capacity when unused for minutes after running out? [duplicate]

Manually control smartphone power current drawing during charge?

Fast charging ports under the hood - technical details behind the standards? [closed]

NAND flash retention using USB charger?

USB charger limits: 9 V, 1.7 A but only 5 V, 2 A? Not exactly anti-proportional

Flash storage: How do I know the remaining writing cycles without relying on SMART?

PMR446 interferes with small electronics?

Voltage drop if power draw is too quick: Does it happen naturally or regulated?

Do full charges and deep discharges wear the battery because of terminal voltage?

How to measure internal battery pressure?

Does charging near maximum C rate have the same effect as high battery levels?

AMOLED display vs. LCD display: Power consumption when displaying white only?

Batteries have a constant charging speed from 0%→70% instead of being any faster at 0%?

Two 5V2A powerbanks draw different current under same conditions?

Which current can a multimeter measure for an indefinite duration?