150₴
Tesla 21700 Battery Cell (with nickel cap)
Battery CellsGenuine industrial-grade 21700 battery cell, fully ready for safe soldering at home or in the field. We have already done the hardest part of the job for you — using professional equipment, we securely welded a nickel cap to the positive terminal.
Available on backorder
Description
Why does this matter and what is your benefit?
🔸No risk of overheating: Soldering wires directly to a battery cell is strongly discouraged — high temperature destroys the cell’s chemistry and sharply reduces its capacity and service life.
🔸Ready to work: Thanks to the welded nickel cap, you can easily and safely solder any wire with an ordinary soldering iron in a matter of seconds.
🔸Industrial quality: Welding is performed on a high-precision automated CNC machine. This guarantees perfect electrical contact, no defects and maximum joint reliability that will withstand vibration and load.
🔸Cost saving: You do not need to buy an expensive spot welding machine for battery cells.
Perfectly suited for:
🔸Assembling custom power banks and high-capacity power stations.
🔸Building battery packs for FPV drones.
🔸Repairing and repacking batteries for power tools.
🔸Powering portable tactical electronics.





