21700 DIY kit guide
A 21700 DIY kit. US$69.
Case and PCB for two 21700 cells, with a snap-fit cover and supplier-described TFT display. Cells are not included. Soldering is required; checkout is not available yet.
Three things to confirm.
Check the cell requirements, soldering requirements and exact package list before choosing this kit.
Cell format
The kit requires two 21700 cells, supplied separately. Confirm the exact supported cell models before assembly.
Assembly required
This case and PCB kit requires soldering. It is not an assembled or hot-swap power bank.
Package contents
The source listing includes a case and PCB, with cells excluded. Confirm any other accessories before ordering.
Two cells. Assembly required.
The current kit is designed for two 21700 cells. The snap-fit cover is an enclosure feature, not a promise of hot-swappable cells. Soldering is required.
21700
Two cells required, supplied separately. Confirm the exact compatible cell models before assembly.
US$69
Listed kit price. Online checkout and payment collection are not currently available.
The supplier reports a TFT color display for battery level, voltage, current and power, with board output up to 22.5 W and input up to 20 W. These listing claims are not independently validated; confirm port-specific ratings and protocols.
Common questions.
What the kit includes, what assembly requires, and the details to confirm before ordering.
What is included in this kit?
The PowerbankCase 21700 DIY Power Bank Kit includes a case and PCB for two 21700 cells. Cells are not included. Confirm the complete accessory list before ordering.
Is it ready to use?
No. Soldering and assembly are required. The snap-fit cover does not make the cells hot-swappable, and this is not an insert-and-go power bank.
What is the price?
The listed kit price is US$69. Online checkout and payment collection are not currently available.
Which cells does the kit require?
The supplier specifies two 21700 cells, supplied separately. Confirm the exact supported cell models and manufacturer instructions before assembly.
What does the display show?
The supplier describes a TFT color display showing battery level, voltage, current and power. These details are supplier-reported, not an independent performance test.
What charging performance is reported?
The supplier reports board output up to 22.5 W and input up to 20 W, with phone charging dependent on the connected device. These claims have not been independently validated; confirm port-specific ratings and protocols before ordering.
Can I order now?
Online ordering is not open yet. Contact support@powerbankcase.com to ask about product documentation, exact package contents and availability.