It's possible that you've had bad luck with the batteries you've purchased, but it's also possible that there could be another issue causing the rapid battery drain.
- Make sure the batteries you purchased are compatible with your iPod Touch model. Some batteries may not work with certain models. If you are certain that you are using the correct battery, then it may be worth considering other potential causes of battery drain such as software issues or hardware problems.
- Check the battery connections inside your iPod Touch to make sure they are clean and secure. Sometimes a loose or dirty connection can cause issues with battery life.
- One possibility is that there is a problem with the charging circuitry in your iPod. This could be causing the battery to not charge properly or to discharge more quickly than it should. In this case I think you would need a new motherboard.
- Another possibility is that there is a software issue that is causing the battery to drain quickly, such as an app or setting that is consuming a lot of power. Try resetting your iPod Touch to its factory settings. Sometimes software glitches can cause battery drain issues, and resetting your device may fix the problem.
- If none of the above steps work, it's possible that there is a hardware issue with your iPod Touch. You may want to consider taking it to a repair shop or contacting Apple support for assistance.
In any case, it's worth trying different troubleshooting steps to see if you can pinpoint the issue. Good luck!