Slim Power Bank Using 21700 Li Ion Cell

by Flash_Heart in Circuits > Electronics

346 Views, 3 Favorites, 0 Comments

Slim Power Bank Using 21700 Li Ion Cell

WhatsApp Image 2022-07-12 at 4.00.52 PM(3).jpeg
WhatsApp Image 2022-07-12 at 4.00.52 PM.jpeg

Slim Power Bank using 21700 Li ion Cell. 3D printed body.

Supplies

WhatsApp Image 2022-07-12 at 4.00.53 PM.jpeg
ps32055090-type_c_usb_5v_2a_boost_converter_step_up_power_module_lithium_battery_charging_protection_board-1215392772.jpg

1.21700 cell from Robokits or Robu.

2. 5v 2A boost charging module


https://makerbazar.in/products/type-c-usb-5v-2a-step-up-boost-converter-with-usb-charger

WhatsApp Image 2022-07-12 at 4.00.52 PM(1).jpeg
WhatsApp Image 2022-07-12 at 4.00.52 PM(2).jpeg
PXL_20220718_085749919.jpg
PXL_20220718_085746512.jpg
PXL_20220718_085659782.jpg
PXL_20220718_084824493.jpg
PXL_20220718_084916561.jpg
PXL_20220718_085653505.jpg

3D print body and cap and solder battery positive and negative to board according to signs. Use nickel strip for negative battery terminal. Use epoxy glue to secure boost module to cap body.

Downloads

Body1F.stl
Body2f.stl