XH A232 TPA3110 Amplifiers Circuit Board 30W 30W Speakers Dual Channel Power DC8-26V 3A
1 × 160৳ 
XL4016 20A Step-Down Buck Converter CC CV Power Supply Module | DC 6V-40V to 1.2V-35V Voltage Regulator
1 × 435৳ 
3S 40A Li-ion Lithium Battery Charger Protection Board BMS Enhanced Version
1 × 130৳