Replacement Battery for Square Portable Wireless Credit Secure Debit Card Reader Terminal

The Artisan Power replacement battery for the Square Portable Wireless Card Reader delivers 3450 mAh of capacity — 188% more power than competing batteries — built with premium Japan-made lithium-ion cells for reliable, long-lasting performance. Engineered as a direct drop-in replacement for the A-BAT-0066, it provides stable 3.6V output from first swipe to last with no mid-shift power drop-off, keeping your business running through even the busiest days. 

Every battery features a 12-point protection circuit guarding against overcharging, over-discharge, over-voltage, over-current, overheating, and short circuits — so you can swap and go with confidence. Backed by Artisan Power's 1-year warranty and dedicated customer support, it's the smarter, longer-lasting choice for your Square terminal.