Bringing a dead drill LION battery back to life

[blackangst1]

So my cordless drill (LION battery) sat for quite awhile, and the battery was dead. I plugged it into the charger and it indicated call customer service. Was talking to a friend of mine, and introduced me to the re-animation of LION batteries. Apperently the charger needs to detect a little power to start charging. He then enlightened me to the hack of bringing these back to life!

I used this method with an old cell phone charger https://www.enegitech.com/blogs/tips/how-to-revive-a-lithium-ion-dead-battery-from-power-tools

After creating an initial charge (5 minutes or so) I put the battery on the charger and it started charging!

Do you guys know about this hack? There are several ways to do it, with dozens of walk throughs on youtube.

Moved from P&N - Moderator Ken g6

 

[Meghan54]

The chargers I’ve purchased lately can force a recharge cycle even if no voltage detected in subject battery. No tricks necessary. NOCO chargers for instance. Nice trick tho. 🤪

 

[blackangst1]

Shit why did I poost this in P&N.

PLEASE MOVE TO OT!

 

[sdifox]

Shit why did I poost this in P&N.

PLEASE MOVE TO OT!

What do you have against the oil industry?

There, now it belongs in P&N.

Yes, I know it has been moved xd

 

[Dulanic]

Yeah I had to do that before for my drill also. I had to feed it 12V direct to the battery for a short bit to get it a small charge to be recognized by the charger.

 

[Sukhoi]

There's a reason better engineered Li-ion batteries have low voltage lockouts. When cells sit at low voltage the copper current collector dissolves into the electrolyte, and then later after charging is deposited on the anode as dendrites. As the cells expand and contract through usage cycles the dendrites can puncture the separator, causing a short circuit and thermal runaway. If you don't care about a non-negligible chance of burning your house down go ahead and bypass the safety circuit so you can use your damaged battery longer.

 

[slpaulson]

Lithium batteries are not to be toyed with. I wouldn’t risk a fire over biting the bullet and buying a new battery.