Bose SoundLink Mini Battery light keeps flashing yellow unit wont turn on, what is the procedure to fix this? Is this continual flashing indicative of the internal battery needs replacing after 2 yrs?

Put the Soundlink Mini on charge. Then go to your Bluetooth device.

Go to the Bluetooth app. Turn on the Bose Soundlink Mini.

Press the Bluetooth button on the speaker. This makes it discoverable.

Watch the lights on the Soundlink Mini. ...

Press the 'Bose mini sou' button. ...

Listen to your music

This could be as simple as a battery. Check that with a voltage meter. If you replace it this will probably be fine.

If your Bose SoundLink Speaker's battery indicator is flashing red, this usually means the battery has less than 20% charge - and is need of charging. http://worldwide.bose.com/productsupport/en_us/web/article_235_indicator_lights/page.html

[PDF]Owner's guide - Bose

worldwide.bose.com/.../soundlink_mini/.../owg_en_sou...
Bose CorporationMini Bluetooth® Speaker. Owner's ... to charge and discharge the battery pack several times to obtain ..... the Bose® SoundLink® Mini speaker battery lasts up.

these units are very compact and are not to be used for long periods of time at peak performance a few things may have happened
1-(you may have over charged the system)
2(the batteries my have leaked and failed)
3( the ac-dc components have failed)
in any case the system must be checked by a tech there's not easy fix for this unit. thanks for asking god bless!and good luck!

Sounds like the battery is dead. Time to replace the battery. Is it under warranty? If not, then buy a replacement battery from Bose.

Here's the "How to" for battery replacement:
http://worldwide.bose.com/productsupport/en_us/web/soundlink_bluetooth_mini/page.html#article_type=top_article+track_article&article_href=../article_796_replacing_battery/page.html%23article_body

Sounds like the battery is dead. Time to replace the battery. Is it under warranty? If not, then buy a replacement battery from Bose.

Here's the "How to" for battery replacement: Bose SoundLink Mini BLUETOOTH speaker Bose Product Support

Blinking blue light - Discoverable and ready to pair or reconnect with a device. See manual here: Bose SoundLink Mini Bluetooth Speaker Owner guide

The power board is the likely cause of this fault and it can only be replaced by a qualified Bose Service Technician

I love my Bose Soundlink Mini 2. But, I faced a few issues sometimes.

Speaker not turning ONSpeaker not charging with the battery LED blinking.Speaker not getting connected to the bluetooth devices.
But all were fixed by reading through the Manual a bit. To help others, I actually made a video, to show some troubleshooting tips for the Bose Soundlink Mini 2. Checkout the video, if your speaker is not turning ON / not charging / bluetooth not getting connected:

This seems like a very common issue for the soundlink mini 2. This is due to a firmware bug. Gets foxed with a hard reset.Check the video for details and other trouble shooting tips.