Need help with a TB-48

[Chipdji]

I was out flying today and I always watch my battery. This battery seems to fluctuate a little bit. This is what I had at 35%. Is this battery starting to go bad. I don’t want my bird dropping out of the sky. I am new to the I1v2. Thanks in advance.

 

[Ron_Dog]

I would "cycle" the battery and see if the cells would come into balance. I cycle my batterys every 20 cycles (charge, discharge). I go out to the back yard and let the inspire hover until it lands, then just let it idle until it shuts down. Then let the battery rest at least 30 minutes (a hour is better) and charge it back up! Then check the balance of the cells, with a fresh charge in the battery! Hope this helps you.

 

[Chipdji]

I just got done recycling the battery last week. I did exactly as you do.

 

[Ron_Dog]

I just got done recycling the battery last week. I did exactly as you do.

Is this the only battery you have? With only 17 cycles on it, it should do better than this? If it's a new Inspire/battery,I would contact DJI about the battery.

 

[Chipdji]

I have no idea how old the battery is it was with it when I purchased it secondhand. I did fly a new battery today. And I noticed when it got down to 30% The cells were all yellow not just a few cells. But when I land all the cells are all even. Should I not trust the battery or just watch it.

 

[Ron_Dog]

I have no idea how old the battery is it was with it when I purchased it secondhand. I did fly a new battery today. And I noticed when it got down to 30% The cells were all yellow not just a few cells. But when I land all the cells are all even. Should I not trust the battery or just watch it.

I would trust it! I try to land around 40%! This cuts down my flight time, but it is much better for the batterys,than draining them down too low. On occasion,I will get out too far and drop below the 40% level comming home, but I try not to make it a habit! .1 or .2 of a volt variation isn't too much to worry about, when I get .5 or above diffrence I start looking at the battery.

 

[Chipdji]

Thanks.

 

[MrTVR]

Your 17 cycle battery looks ok. However, I don’t rely too much on the battery % and tend to take more notice of cell voltage to determine when I need to land.

As a minimum, 3.5v it’s time to come home, 3.3v in flight (the voltage will recover after landing) and I should be on the ground. At 3.1v you risk permanent damage to the cell.