The female 5.5×2.1 mm jack is for charging, while the male jack is for discharging—allowing tool-free swapping of chargers and loads.
An onboard NTC thermistor plus a 4 A BMS automatically cuts off if cell temperature exceeds safe limits.
Yes—Himax’s OEM service can swap to your preferred jack dimensions or connector style under wholesale terms.
With 3500 mAh 18650 cells and quality BMS, you can expect over 500 cycles at 80 % depth of discharge.
Email Himax with your specs and quantities to receive a detailed quotation and volume discount schedule.