Build your own portable POWER STATION (1200w, USB-C and MORE!)

Summary by Krater

The creator builds a powerful 1,200W battery bank using 84 21700 lithium-ion cells, plastic battery spacers, a BMS, spot welding, and aluminium and PTFE casing panels. The completed battery bank successfully powers a microwave and other household devices.

From the video

Answers: How do you build a high-power 1,200W lithium-ion battery bank?

• Building a 1,200W lithium-ion battery bank
• Wiring 21700 lithium-ion cells in series and parallel
• Spot welding nickel strips onto battery cells
• Installing a battery management system (BMS)
• Assembling PTFE and aluminium battery enclosures

What it concludes

• Lithium-ion cells can rapidly heat up and become a fire hazard if shorted out, requiring high care and attention to safety.
• Using plastic battery spacers keeps cells physically separated by millimeters to eradicate the chance of shorting out.
• Spot welding using nickel strips is a much better method than soldering directly onto cells to avoid heat damage and preserve lifespan.
• Quality branded BMS boards provide high levels of safety, overcurrent protection, and automatic cell balancing.
• Adding insulating PTFE plastic sheets and aluminium panels protects the battery pack both physically and electrically.