7.5V Radio Mains Adaptor Power Supply Compatible with Roberts Elise DAB/DAB+/FM RDS Digital Radio Replacement Charger Adapter Cable UK Plug: ÍøÆغÚÁÏ.co.uk: Electronics & Photo
[Compatible Product] Compatible with Roberts Elise DAB FM RDS Digital Radio
[Power Specifications] Input: 100-240V ac50/60Hz. Output: DC 7.5V 1.5A
[Charger Safety] The plug is safe, reliable, brand new, in line with the relevant provisions of the power supply, AC adapter with comprehensive protection for your radio to provide electrical noise reduction, thermal protection and over-voltage protection and so on
[Easy to use] Can charge your radio anytime, anywhere, can quickly restore the radio's power supply, is the best companion for the radio, can let you always enjoy the wonderful music
[Better Service] We offer 30 days money back, 12 months replacement and friendly after-sales service
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I've been looking for a dedicated 7.5V Radio Mains Adaptor Power Supply for some time now for my Mind Lab Machine. Previously I had one of those adjustable voltage, spider type charging plugs which had a variety of different plug connectors on it. Having a dedicated power supply means that I don't accidentally use the wrong voltage setting.This particular charger seems well made, my only one concern is the rather alarming wording in the instruction leaflet which states the following.., "Sometimes when you insert the power adapter into the wall, you will see current sparks. Please rest assured, it is usually normal". Now I'm not an electrician but seeing sparks when you plug something into a wall outlet sounds positively dangerous to me and this would almost certainly blow a fuse. Thankfully in practice however, no sparking was detected and the charger did remain cool throughout the 8 hour charging session.Given that charging devices do often heat up during use it's probably good advice never to leave one plugged in unattended, especially if safety testing cannot be guaranteed.
ÍøÆغÚÁÏ Vine Customer Review of Free Product( What's this? )
I've been looking for a dedicated 7.5V Radio Mains Adaptor Power Supply for some time now for my Mind Lab Machine. Previously I had one of those adjustable voltage, spider type charging plugs which had a variety of different plug connectors on it. Having a dedicated power supply means that I don't accidentally use the wrong voltage setting.
This particular charger seems well made, my only one concern is the rather alarming wording in the instruction leaflet which states the following.., "Sometimes when you insert the power adapter into the wall, you will see current sparks. Please rest assured, it is usually normal". Now I'm not an electrician but seeing sparks when you plug something into a wall outlet sounds positively dangerous to me and this would almost certainly blow a fuse. Thankfully in practice however, no sparking was detected and the charger did remain cool throughout the 8 hour charging session.
Given that charging devices do often heat up during use it's probably good advice never to leave one plugged in unattended, especially if safety testing cannot be guaranteed.
4.0 out of 5 stars
Works with other 7.5 volt DC products
Reviewed in the United Kingdom on 3 August 2024
I've been looking for a dedicated 7.5V Radio Mains Adaptor Power Supply for some time now for my Mind Lab Machine. Previously I had one of those adjustable voltage, spider type charging plugs which had a variety of different plug connectors on it. Having a dedicated power supply means that I don't accidentally use the wrong voltage setting.
This particular charger seems well made, my only one concern is the rather alarming wording in the instruction leaflet which states the following.., "Sometimes when you insert the power adapter into the wall, you will see current sparks. Please rest assured, it is usually normal". Now I'm not an electrician but seeing sparks when you plug something into a wall outlet sounds positively dangerous to me and this would almost certainly blow a fuse. Thankfully in practice however, no sparking was detected and the charger did remain cool throughout the 8 hour charging session.
Given that charging devices do often heat up during use it's probably good advice never to leave one plugged in unattended, especially if safety testing cannot be guaranteed.
ÍøÆغÚÁÏ Vine Customer Review of Free Product( What's this? )
7.5V Radio Mains Adaptor Power Supply Compatible with Roberts Elise DAB/DAB+/FM RDS Digital Radio Replacement Charger
This Power Supply Unit came with easy to read multi-lingual instructions.
One point the instructions make is about how you may see sparks when the adapter is plugged in (also mentioned by another reviewer). This is a nothing to worry about and you may not be noticeable.
This is normal for many power supplies and is caused by the sudden brief current surge as the internal capacitors(s) charge up. It is very common to hear the crack of a spark when a laptop PSU is plugged in. The same thing could happen when you plug in a heavy load, such as electric fire etc. The sparks are caused by temporary arcing at the point of contact between the plug / PSU pins in the socket. This is one reason why it's always preferable to turn off the switch on the socket (if there is one) before plugging or unplugging equipment. You can also get arcing at the switch as the contacts make / break the power. Sometimes the arcing can actually be heard.
I tested the power supply under full load, noting the voltage at different current levels as I increased the load. I then ran the power supply at full load for about 30 minutes, with the following results:
0A (no load) - 7.69V 0.5A - 7.48V 0.75A - 7.37V 1A - 7.27V remained at this voltage for the full duration of the full load test The voltage drop at maximum load is 0.42V, which shouldn't be a problem.
Testing information: The standard way that I test many ordinary power supplies is under load whilst measuring the real time Current and Voltage.
For this, I use a simple piece of equipment - the Atorch UD18-L This is the UD18 multifunctional inline tester meter, that also comes with a finely adjustable current load. The tester is connected to the relevant supply (via USB, power jack etc. connector) and the load adjusted as required. The display shows the live state of the voltage, and the current being drawn by the load. This is useful if you want to check the power supply's capabilities, such as the maximum power it can supply or the voltage drop over the current range.
With a good power supply, the voltage drop at maximum current should be a small percentage of the no load voltage. Poor power supplies often have a large voltage drop at maximum purpose and may not be fit for purpose if the voltage is too low. Some might even cut out before it reaches the maximum current.
I test the power supply under full load for a period of time, usually between 10 - 30 minutes. This is normally plenty of time because any problems usually show within a couple of minutes.