Hi,
I have many many iPods in my collection and often buy, refurbish und sell them. I guess 10-20% of the used iPod 7th gen I buy have an issue I call "draining battery issue". Every iPod I open I connect a new battery to and check the voltage. After a full charge the voltage ist about 4,17 V. Day by day the voltage drops as shown in the diagram.
![Voltage loss iPod classic 7th gen.png]( "Voltage loss iPod classic 7th gen.png")
That's normal, but some iPods have a mastic voltage drop. After a few days the battery has lost so much voltage that it even doesn't power on. I guess some component of the logic board must be defective, but I don't know which one. Do you have any ideas?
In my collection I have 9 iPods 1st gen. 2 weeks ago I charged them and after a week 5 of them had a massive voltage drop and didn't even power on. My only solution is the modification of the Hold-switch. I turned it into a power switch.
Hold-switch-mod:
I soldered the hold switch off the logic board and bridged the two left solder points. Tape them with antistatic tape. Then I soldered the red lead off the battery board and soldered another on. I soldered the two ends of the red leads to the two left pins of the switch (new one: C&K AYZ0102AGRLC) and soldered it back to the board. You can also use super glue! Now the Hold button works as on/off switch that prevents the battery from discharging/draining.
used switch: C&K AYZ0102AGRLC
![shopping.png]( "shopping.png")
The hold-switch-mod is my way to make an iPod 1st gen work longer than a few days. But I would prefer a repair of the defective component of the logic board. Any help is welcome.
I have many many iPods in my collection and often buy, refurbish und sell them. I guess 10-20% of the used iPod 7th gen I buy have an issue I call "draining battery issue". Every iPod I open I connect a new battery to and check the voltage. After a full charge the voltage ist about 4,17 V. Day by day the voltage drops as shown in the diagram.
That's normal, but some iPods have a mastic voltage drop. After a few days the battery has lost so much voltage that it even doesn't power on. I guess some component of the logic board must be defective, but I don't know which one. Do you have any ideas?
In my collection I have 9 iPods 1st gen. 2 weeks ago I charged them and after a week 5 of them had a massive voltage drop and didn't even power on. My only solution is the modification of the Hold-switch. I turned it into a power switch.
Hold-switch-mod:
I soldered the hold switch off the logic board and bridged the two left solder points. Tape them with antistatic tape. Then I soldered the red lead off the battery board and soldered another on. I soldered the two ends of the red leads to the two left pins of the switch (new one: C&K AYZ0102AGRLC) and soldered it back to the board. You can also use super glue! Now the Hold button works as on/off switch that prevents the battery from discharging/draining.
used switch: C&K AYZ0102AGRLC
The hold-switch-mod is my way to make an iPod 1st gen work longer than a few days. But I would prefer a repair of the defective component of the logic board. Any help is welcome.