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u/WingsWithoutDrone

Image 1 — My friend wired the balance plug wrong and blew up the U5 IC on my B3 charger. Now it's a permanent 2S charger."
Image 2 — My friend wired the balance plug wrong and blew up the U5 IC on my B3 charger. Now it's a permanent 2S charger."
▲ 9 r/radiocontrol

My friend wired the balance plug wrong and blew up the U5 IC on my B3 charger. Now it's a permanent 2S charger."

my friend borrowed my basic B3 Lipos charger to charge his DIY 3S 18650 pack. He is short-sighted (nearsighted) but decided to solder the balance wires without wearing his glasses or double-checking with a multimeter.

He nailed the first two cells, but when it came to the 3rd wire, he completely messed up the polarity and plugged it in. BOOM! The U5 IC literally exploded with a loud pop and left a nice burnt hole right in the middle.

Now he texted me saying "My eyes are bad, that's why" 🤡 and my charger is officially 50% dead, permanently converted into a 2S charger. Watch out for those nearsighted RC builders who don't wear their glasses folks, they are a hazard!

u/WingsWithoutDrone — 2 days ago
▲ 4 r/rcboats

My friend wired the balance plug wrong and blew up the U5 IC on my B3 charger. Now it's a permanent 2S charger."

So my friend borrowed my basic B3 Lipos charger to charge his DIY 3S 18650 pack. He is short-sighted (nearsighted) but decided to solder the balance wires without wearing his glasses or double-checking with a multimeter.

He nailed the first two cells, but when it came to the 3rd wire, he completely messed up the polarity and plugged it in. BOOM! The U5 IC literally exploded with a loud pop and left a nice burnt hole right in the middle.

Now he texted me saying "My eyes are bad, that's why" 🤡 and my charger is officially 50% dead, permanently converted into a 2S charger. Watch out for those nearsighted RC builders who don't wear their glasses folks, they are a hazard!

u/WingsWithoutDrone — 2 days ago