The Qudelix-5K thread
Oct 26, 2024 at 1:05 PM Post #5,086 of 5,194
I use most of the same settings, but since I've used my Q5K so much over the past few years, it's now down to about 2hrs of battery life per charge. No longer a very useful device unfortunately. RIP. I recently replaced/supplemented it with a budget DAP (Hiby R4) rather than attempt a battery replacement or just replacing the entire Q5K.

That's a bummer. I've only had mine less than a year. If it died today, I'd have spent $0.16 per hour of use, and I'd order another.

Did you often charge to 100% or stop at 80%? Curious if my stopping at 80% will actually extend the battery or not. :D
 
Oct 26, 2024 at 1:08 PM Post #5,087 of 5,194
That's a bummer. I've only had mine less than a year. If it died today, I'd have spent $0.16 per hour of use, and I'd order another.

Did you often charge to 100% or stop at 80%? Curious if my stopping at 80% will actually extend the battery or not. :D
I charged it to 80%, so nothing to compare it to. But I used it extensively on a nearly daily basis for close to three years. I think I got more than my money's worth. Only reason I switched to a DAP was for added convenience (no need for bluetooth or dongle cables) at not much more outlay.
 
Oct 26, 2024 at 1:28 PM Post #5,089 of 5,194
What chargers do yall use? I hate to get another charger that's 5v for my car. reason why I want quick charge and long battery life is, I don't want to worry about charging all the time. my main use for it is the bt.

when using it on usb, how to prevent degrading battery from contantly charging?
 
Last edited:
Oct 26, 2024 at 1:56 PM Post #5,090 of 5,194
i turn off charging under battery settings and leave it around 3.8-3.85v (30-40%) when on USB.

other than qudelix specifically warns against anything above 5v (i think someone else mentioned this though) - don't most chargers do 5v by default? and then if available they will go higher when the devices indicate that it's capable? should be able to read the text on the charger itself and see if it has 5v along with the 9v/12v/etc
 
Oct 26, 2024 at 2:39 PM Post #5,091 of 5,194
What chargers do yall use? I hate to get another charger that's 5v for my car. reason why I want quick charge and long battery life is, I don't want to worry about charging all the time. my main use for it is the bt.

when using it on usb, how to prevent degrading battery from contantly charging?

I plug it into my computers USB port when I'm there. Or I use a power bank with a 1A port. When I'm home, that's the only thing that uses my power bank that I keep on table next to bed. I probably have to recharge the power bank every month or so.

The Qudelix has a setting so you can control whether it charges when plugged into USB. You can stop at 80% or just not charge at all.
 
Oct 26, 2024 at 2:48 PM Post #5,092 of 5,194
I plug it into my computers USB port when I'm there. Or I use a power bank with a 1A port. When I'm home, that's the only thing that uses my power bank that I keep on table next to bed. I probably have to recharge the power bank every month or so.

The Qudelix has a setting so you can control whether it charges when plugged into USB. You can stop at 80% or just not charge at all.
Any solution to reminding you to charge at close to 20%? Is there a notification?
 
Oct 26, 2024 at 3:23 PM Post #5,094 of 5,194
i turn off charging under battery settings and leave it around 3.8-3.85v (30-40%) when on USB.

other than qudelix specifically warns against anything above 5v (i think someone else mentioned this though) - don't most chargers do 5v by default? and then if available they will go higher when the devices indicate that it's capable? should be able to read the text on the charger itself and see if it has 5v along with the 9v/12v/etc
Newer ones do higher voltage for fast charging.

Thanks for all the info all. I will see how it work out, and will baby it. I notice batter life being longer that I turned off LDAC and going with AptX.

It's a little charming device I will admit.
 
Oct 26, 2024 at 8:01 PM Post #5,095 of 5,194
That's a bummer. I've only had mine less than a year. If it died today, I'd have spent $0.16 per hour of use, and I'd order another.

Did you often charge to 100% or stop at 80%? Curious if my stopping at 80% will actually extend the battery or not. :D

I charged it to 80%, so nothing to compare it to. But I used it extensively on a nearly daily basis for close to three years. I think I got more than my money's worth. Only reason I switched to a DAP was for added convenience (no need for bluetooth or dongle cables) at not much more outlay.

What chargers do yall use? I hate to get another charger that's 5v for my car. reason why I want quick charge and long battery life is, I don't want to worry about charging all the time. my main use for it is the bt.

when using it on usb, how to prevent degrading battery from contantly charging?

I plug it into my computers USB port when I'm there. Or I use a power bank with a 1A port. When I'm home, that's the only thing that uses my power bank that I keep on table next to bed. I probably have to recharge the power bank every month or so.

The Qudelix has a setting so you can control whether it charges when plugged into USB. You can stop at 80% or just not charge at all.
I've had my Qudelix 5K for over four years now(since it came out in 2020). I usually limit charging to 80%, which I think is a great feature (charge to 100% once in a while). Other than that, I use all sorts of 30 - 65W chargers I got off Amazon all the time (at home, at the office and when traveling). Still going strong. Really is a great device and I don't think the charger really matters.
 
Oct 26, 2024 at 8:37 PM Post #5,096 of 5,194
I've had my Qudelix 5K for over four years now(since it came out in 2020). I usually limit charging to 80%, which I think is a great feature (charge to 100% once in a while). Other than that, I use all sorts of 30 - 65W chargers I got off Amazon all the time (at home, at the office and when traveling). Still going strong. Really is a great device and I don't think the charger really matters.
This what I was thinking. The device has voltage and current limits built in. Chargers have various modes of voltages and current outputs, and will not just pour any amount, the device has rules to allow only certain amount in. So, that statement on the manual made no sense. Probably not written by an engineer.

Is there an engineer from Qudelix give us a precise answer?
 
Last edited:
Oct 27, 2024 at 7:34 AM Post #5,097 of 5,194
I don't hear any difference in sound quality but just to check , keeping my wire like this won't interfere with bluetooth?
1000357209.jpg
 
Oct 27, 2024 at 2:08 PM Post #5,099 of 5,194
Just out of curiosity, does Quedix drain battery of the phone or the Quedix when in usb mode to the phone?

God I miss the headphone jack on the our phones. Life was so much more convenient.
 
Last edited:
Oct 27, 2024 at 2:13 PM Post #5,100 of 5,194
This what I was thinking. The device has voltage and current limits built in. Chargers have various modes of voltages and current outputs, and will not just pour any amount, the device has rules to allow only certain amount in. So, that statement on the manual made no sense. Probably not written by an engineer.

Is there an engineer from Qudelix give us a precise answer?

I am not from QUDELIX, but if you agree, I can explain something.

The charger is inside the device, always.
What we call 'USB chargers', in reality it would be more correct to call them USB power supplies.

If they are compatible with the PD or QC standards, they are able to supply a voltage greater than the standard 5V. But this supply of greater voltage occurs exclusively upon request of the device being charged, after specific negotiation.
In the case of the 5K, it does not occur, and therefore any USB power supply supplies the standard 5V.

Regarding the 80% charge limit, it actually has value and protects the internal cell, especially if it is left for many hours in a fully charged state.

In other words, the cell left charged at 100% rather than 80%, undergoes greater degradation.

But these are known recommendations, which are valid for practically every device equipped with lithium cells.

Less subject to this type of ‘degradation’ are lithium iron phosphate (LiFePO4) cells, but they are rarely used as single cells in electronic devices, for various reasons, one of which is their lower nominal voltage (3.3V instead of 3.7-3.8V).
 

Users who are viewing this thread

Back
Top