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Is there still hope for my battery?

Parzival

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My battery broke today. Nothing happened, i just can't recharge it anymore, it stays empty. My second battery works perfect. Both are official ones, but the working one is from Fullymax and the broken one from Sefu. I haven't used the drone a lot, so it might have 20 total charges...

Please help...
 

Ansia

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I thought all oem batteries were Fullymax. What probably happened is the cell inside your battery collapsed. If you try to charge it, it may explode.
 

Griffen

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I thought all oem batteries were Fullymax. What probably happened is the cell inside your battery collapsed. If you try to charge it, it may explode.
I got 3 batteries, one is Fullymax the rest are SEFU. Got same design tough. The only difference is the brand name

My battery broke today. Nothing happened, i just can't recharge it anymore, it stays empty. My second battery works perfect. Both are official ones, but the working one is from Fullymax and the broken one from Sefu. I haven't used the drone a lot, so it might have 20 total charges...

Please help...
Maybe you charge it into a device with high voltage, or fast charging adapter for smartphone. Which is not suitable for tello battery
 

Ansia

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I got 3 batteries, one is Fullymax the rest are SEFU. Got same design tough. The only difference is the brand name
Guess these SEFU have not been distributed where I live. When you go to Best Buy, all you see are Fullymax.
 

Parzival

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I used my powerbank to charge it, but I did that a few times before...
 

Ansia

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Looking into these SEFU batteries, I found this thread. Thank God I only own Fullymax.

My Tello Battery Test

They aren't bad, just that Fullymax is better.
 
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