[taperted]

Hi all --

The battery in my Headamp Pico DAC/Amp seems to be on its last legs. It doesn't hold the charge for very long -- I'll be lucky to get a couple hours out of it. I tried contacting Justin at Headamp, and aside from an initial diagnosis, after repeated attempts, he has been unresponsive to arranging service to replace the battery.

I am going to attempt to replace the battery myself.

In this thread, oOKaMiZuKOo successfully replaced his battery, although I don't think he sourced the correct battery.

https://www.head-fi.org/threads/headamp-pico-how-to-change-the-battery-where-and-what-to-buy.810801/

I can verify that the original battery is a LiPo, and is labeled GBP443440. Looking up this battery, I believe this is a 3.7V. However, it looks like there are 2 cells here. When I check with a multimeter, the voltage is 7.8V.

So it looks like I will need a 2S pack, however, I am having a hard time finding a battery like this (7.4 V, 9 x 34 x 40 mm, with 3 leads). Can anybody help with locating a battery, or alternatively, how would I go about taking 2 x 3.7 V batteries and wiring them in series?

Thanks in advance!

Ted

 

[HiGHFLYiN9]

Hi Ted, you may want to check out diyaudio.com if you don't get any answers. Far more engineers over there

 

[Baten]

Hi all --

The battery in my Headamp Pico DAC/Amp seems to be on its last legs. It doesn't hold the charge for very long -- I'll be lucky to get a couple hours out of it. I tried contacting Justin at Headamp, and aside from an initial diagnosis, after repeated attempts, he has been unresponsive to arranging service to replace the battery.

I am going to attempt to replace the battery myself.

In this thread, oOKaMiZuKOo successfully replaced his battery, although I don't think he sourced the correct battery.

https://www.head-fi.org/threads/headamp-pico-how-to-change-the-battery-where-and-what-to-buy.810801/

I can verify that the original battery is a LiPo, and is labeled GBP443440. Looking up this battery, I believe this is a 3.7V. However, it looks like there are 2 cells here. When I check with a multimeter, the voltage is 7.8V.

So it looks like I will need a 2S pack, however, I am having a hard time finding a battery like this (7.4 V, 9 x 34 x 40 mm, with 3 leads). Can anybody help with locating a battery, or alternatively, how would I go about taking 2 x 3.7 V batteries and wiring them in series?

Thanks in advance!

Ted

Did you manage the replacement?

 

[oOKaMiZuKOo]

Hi all --

The battery in my Headamp Pico DAC/Amp seems to be on its last legs. It doesn't hold the charge for very long -- I'll be lucky to get a couple hours out of it. I tried contacting Justin at Headamp, and aside from an initial diagnosis, after repeated attempts, he has been unresponsive to arranging service to replace the battery.

I am going to attempt to replace the battery myself.

In this thread, oOKaMiZuKOo successfully replaced his battery, although I don't think he sourced the correct battery.

https://www.head-fi.org/threads/headamp-pico-how-to-change-the-battery-where-and-what-to-buy.810801/

I can verify that the original battery is a LiPo, and is labeled GBP443440. Looking up this battery, I believe this is a 3.7V. However, it looks like there are 2 cells here. When I check with a multimeter, the voltage is 7.8V.

So it looks like I will need a 2S pack, however, I am having a hard time finding a battery like this (7.4 V, 9 x 34 x 40 mm, with 3 leads). Can anybody help with locating a battery, or alternatively, how would I go about taking 2 x 3.7 V batteries and wiring them in series?

Thanks in advance!

Ted

Old post but found randomly this thread.
I confirm my battery replacement choice worked.
Futhermore, my pico dac amp is still alive and working... Wow ! Quality was/is still great.

BUT :
If initial voltage was 7,8v, just need to combine 2 batteries 3,7x2 = 7,4v and make it in series circuit > 1rst battery cable positive connected to plug + in motherboard, 1rst battery negative cable connected to 2nd battery cable positive and negative cable of 2nd battery linked to negative plug to motherboard. In series circuit, intensity (A) stay the same.