I purchased a Yuneec Breeze from an auction for $16 bucks. It had two extra batteries and a controller. However, two of the three batteries would flash blue on the charger and would not charge. After doing some research, it seems that one of the cells in the battery is depleted, the charger detects the issue, and to avoid damage, flashes blue (without charging) to alert you that the battery is defective.
Being the cheapskate that I am, I thought there has to be a way to repair this battery.
Most sites say to safely discard the battery and purchase a new one. This is the safest and most reasonable answer for anyone. However if you, like Simba, laugh in the face of danger and disregard reason, the instructions below (though dangerous) may be helpful to you.
Ever jump a car battery? This is just like jumping a car battery. These instructions are at your own risk! Batteries have the potential to explode or burn at high temperatures. Please take the time to read or learn more about batteries and their dangers, but here is the fix that worked for me.
The tools I used:
An Ethernet chord (to use as your jumper cables)
A pair of tweezers (to make the jumper cables)
One good Yuneec breeze battery (the car thats running)
- Cut about 6-8 inches of an ethernet chord like in the image below.
- Using your tweezers pull the twister pairs of chord from the sleeve.
- Using your finger nails carefully pinch off the cover of one of your twisted pairs from both ends to expose the copper metal, about an inch should work well.
- Using your tweezers make a very small loop on the copper ends to insert into your battery. (This ensures the copper is touching the metal contacts in the battery.
The battery has a positive and negative leads, here is an image of the leads
!The next step is at your own risk, it is very dangerous, if you don’t have a clue, please discard the battery and purchase a new one as this is the recommended method!
- Using the loop ends on the ethernet cord, connect the solid cord to the positive leads and the white cord to the negative leads. (This is just to ensure you have the positive to positive and negative to negative. You do not want to cross connections) I connected the leads to the bad battery first. Please be careful to connect the positive connections together and the negative connections together.
- Leave them connected for about 1 min.
- After 1 min of connection time, remove the ethernet cord and place your bad battery on the charger. Viola your charger should be blinking red.
Instructions for charging from the manual