The 12V battery block is very commonly used.

We can use them to power internet modem devices, charge batteries, power LED lights...

And today I will guide you to create a 3S6P - 12V 50AH battery pack with LG MH1 18650 2800mAh battery cell.

Supplies

*** List Parts ***

- 18650 Battery Cell

- 18650 battery holder

- Nickel strip

- Insulation Paper Battery

- Mini Spot Welder

- DC input Jack (5.5 x 2.1mm)

- XT60 DC Jack

- 1S-8S Single 3.7V Lithium Battery Capacity Indicator

- Plastic box

- Wiring

Step 1: Welding Battery

I'm using my DIY spot welder machine to welding all the 18650 battery cell like the circuit diagram above

Connect 3S balance board and other parts. After that put it into the plastic box.

Finish and testing it with HOTA D6 charger to charge FPV Lipo battery

Thanks!