Square vs Shopify POS for Pop‑Up Sellers (2026): Which Power Kit Works Best?

Hook: The POS you pick affects the battery you need — match tech stacks for reliable service during busy pop-ups

Square and Shopify POS each have distinct hardware ecosystems. Your POS choice changes which power banks and connectors you standardise across your stalls and rental kits.

Platform and power mapping

• Square: Often used with smartphones and small card readers; lower continuous power needs.
• Shopify POS: Paired with tablets and receipt printers more often; higher power requirements for sustained periods.

For a full platform comparison for pop-up sellers, see: Review: Square vs. Shopify POS for Pop-Up Shop Sellers.

Practical recommendations

1. Square-only stalls: PD 30–45W banks are usually sufficient.
2. Shopify stalls with tablets/printers: PD 60–100W banks and a small UPS are recommended.
3. Standardise cables and provide a swap bank station during peak hours.

Conclusion

Match power kits to your POS choice. Standardise connectors and provide hot-swap banks to keep queues short and operations smooth.