When I put the battery on the charger the light on the charger stays on for little awhile the it starts to blink, but when I try to use the battery it is not charged. So I am not sure if I need a new

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All about blinking lights on Dyson and Hoover. Either the charger has failed or the battery has failed.

https://www.google.com/search?q=Hoover+Blade+Stick+Vacuum.+I+don%27t+have+blinking+blue+light

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Your Dyson may not have been connected to the charger correctly when last put away.

If you bought it new then you may get solution under warranty condition. Otherwise, you have to repair that from your local experts. As the battery is not charging but a light is blinking then I guess there some prob. inside the charging connection and battery or battery got damaged. Many possibilities there so best idea to make contact with repair man or you may but new one if the repair charge cost more from suppliers like "Vacuum Cleaner Helpers".

Hi Suzanne! Follow these steps to check that your charger and battery are working properly.

1. Unplug the charger for at least 30 seconds.
2. Plug the charger back in. The blue light on the charger should flash once.

If the blue light flashes once this is an indication that the charger is still functioning properly. If the blue light does not flash, the charger will need to be replaced. Follow this link to order a replacement charger. LiNX Battery Charger

3. Place the battery in the vacuum and turn it on for 30 seconds. (even if it does not turn on or powers off)
4. Turn the vacuum off.
5. Remove the battery and place it in the charger.

If the light on the charger is solid blue this is an indication that the battery has been reset. Allow 3-4 hours for the battery to fully charge. The blue light will start to blink slowly to indicate the battery is fully charged.

If the light on the charger is flashing blue or there is no light at all this can mean that your battery needs to be replaced. Follow the link to order a replacement battery. LiNX Lithium Ion Battery

Hope this helps!

Sounds like it could be a bad battery pack that's not accepting a charge.

If both batteries are behaving the same way then this is probably a charger problem. When you insert the battery pack into the charger does the 'charging' light blink for 30 minutes (fast charge) then go steady? I noticed that one of my batteries was causing the light to come on steady immediately I inserted it into the charger. When I tried to use the battery pack I got the same problem everyone else is seeing, i.e. vacuum cleaner shuts off in less than a minute, so I conclude that when the charging light is on steady then the battery is not being charged.

If the charging light does not blink when you insert the battery (i.e. comes on steady or not at all), try removing the battery and re-inserting it into the charger.

Try a conditioning cycle on your battery packs. To do this:
* Insert the battery pack into the charger
* Before the charging light lights press the 'condition' button located just above the charging light.
* The 'conditioning' light should blink. This is a light which does not normally illuminate, and it is located below the condition button and above the charging light. The charger fan will run quieter in this mode.
* Leave the battery pack in the charger for 24 hours while this cycle is taking place.

I'm not a service technician so perhaps someone else might like to post other solutions or corrections to this one.