All Questions
50
questions
1
vote
1
answer
63
views
How are Mac AC adapters compatible when they are different voltages?
I recently had my Mac AC adapter die on me, so I just cut the end off and soldered it on to an old Lenovo AC adapter I had laying around. Since they are both 20V AC adapters, it works fine, but I am ...
- 11
4
votes
3
answers
5k
views
What adapter do I need to replace 4 AA batteries?
I have Yale Linus lock installed at my home. It has 4 AA alkiline batteries inside, and it grinds through them like hot knife grinds through butter. Therefore I want to convert it to an AC powered ...
- 143
1
vote
1
answer
221
views
Connecting 12 V RS485 appliance (soil sensor) to USB 5 V RS485 adaptor
I have a 12 V RS485 appliance that measures some soil resistance etc. It is a 7-in-one soil sensor, the 12 V version of the 5 V version shown in the link.
I could not find a 12 V USB to RS485 adaptor ...
- 11
-1
votes
3
answers
256
views
Is it OK to use a 17 V adapter instead of a 16.8 V adapter? [duplicate]
I have an old model mixer which uses a 16.8 V, 500 mA adapter. The adapter broke and I cant find any adapter that provides the specific voltage and current. What I found is 17 V, 600 mA instead. My ...
- 3
2
votes
1
answer
283
views
Power adapter 13.5V vs 15V
I'm trying to troubleshoot a problem with my Creative Inspire T6100 speakers.
They seem to be known for volume control issues.
In any case, I'm trying to determine if the power adapter is working as ...
- 123
0
votes
1
answer
2k
views
It okay to use 12V 2.5A adapter instead of 12V 1A? [duplicate]
I have a piano keyboard that uses 12V 1A adapter . The adapter was not working anymore so i used another one which was 12V 2.5A but after 45 minutes of usage the keyboard got little heated up in the ...
- 1
-2
votes
1
answer
155
views
How do I get an output of 24V from a K30319 adapter? [closed]
The K30319 adapter is a 24V adapter made by Canon in Vietnam. I pulled it out of a Canon printer someone chucked in the garbage. The adapter works as far as I can tell. I'd like to use this adapter to ...
0
votes
1
answer
652
views
How to confirm whether a device was fried by higher voltage
After a move, I inadvertently hooked up a 15V/3.42A adapter to a device—an X99 (RK3399) Android TV box—which I later found out (when it didn't turn on again)—on the web, as it's not indicated on the ...
- 101
-1
votes
1
answer
1k
views
What will happen, in my router, if I connect 9V, 0.85A Power adapter to a 12V, 1 A adapter slot? [closed]
I have NETLINK HG323RGW GPON ONT Router, it uses 12V,1A, AC-DC power adaptor. ( Power consumption ≤9W )
I also have TPLINK ADSL Router which uses 9V, 0.85A power Adapter. ( https://www.tp-link.com/...
- 1
0
votes
1
answer
2k
views
Is it safe to use an "18v ~ 20v" power brick/adapter for a device that originally had an 18v adapter?
We have a device that uses an 18v adapter/power brick, unfortunately the adapter broke. As a replacement, we are considering an adapter that has a "18v ~ 20v" rating printed on its back. ...
- 101
0
votes
2
answers
581
views
Mini PC received higher voltage (19V instead of 12v) what hap
It was dark behind my desk and I've plugged in the wrong cable 19 V, 3amp instead of the dedicated 12 V, 3amp. The 19V adapter ...
- 113
-1
votes
1
answer
39
views
Adapters from Australia to Canada [closed]
I am in Australia and going to Canada
I have 2 laptops that I want to take with me. and other electical stuff such as shaving machine and electrical teethbrush.
I am going to get Canadian plus with ...
- 107
0
votes
3
answers
164
views
Reduce voltage/amperage from adapter to fit another device
Complete newbie here.
So I got this old gaming console with the original adapter, which outputs 8.2V / 850mA. The cable connection with the body of the adapter is somewhat loose, though, so if you ...
- 101
0
votes
2
answers
2k
views
How can I use a US 120 volt Ryobi charger From a 220 volt main? [closed]
I bought a ryobi kit in the us and I want to use it in in Europe.
I doubt that I can plug it directly into the socket, what kind of converter/adapter do I need?
Is there a way to adapt the charger ...
0
votes
2
answers
64
views
In powering household devices, is the voltage preset and the amperage varies as needed?
When powering household devices, does a power adapter have a preset (or in some cases user-defined) voltage, while the device (while turned on) "selects"/draws whatever amount of amperage it needs at ...
- 167