{"product_id":"rea-card-rea-t6-flex-replacement-battery-37v-2200mah-li-ion","title":"REA CARD Rea T6 Flex Compatible Battery 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eREA CARD Rea T6 Flex — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 2200mAh (8.14Wh) lithium-ion replacement battery for the REA CARD Rea T6 Flex mobile payment terminal. It fits the T6 Flex card reader used by merchants for contactless and chip-and-PIN transactions. When the original cell degrades, this is the direct replacement to restore full operating capacity.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRea T6 Flex platform fit:\u003c\/strong\u003e\n    The T6 Flex uses a single-cell 3.7V Li-ion pack with a specific connector orientation and BMS communication line. This battery matches that voltage rail and connector, so the terminal firmware reads cell state correctly rather than throwing a hardware fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge cycle and simulated transaction load — display on, wireless active, printer firing. The BMS held within spec under combined draw and reported state-of-charge accurately to the terminal's charge IC.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for POS hardware:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before putting the terminal into a live queue. The T6 Flex maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe T6 Flex runs a PCI-compliant boot sequence that includes a handshake with the battery BMS before loading the payment application. On a new cell, the BMS may not yet have an accepted charge history, causing the terminal to stall or loop at the boot screen. This is not a fault with the battery — it is the terminal waiting for BMS validation. Charge the battery to full, then perform one complete cold boot to establish the handshake.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal reboots mid-transaction during receipt printing\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe receipt printer motor draws a short burst of current that can momentarily spike total system draw beyond what a degraded or partially charged cell can sustain. The BMS interprets this as an overcurrent event and trips, cutting power mid-transaction. This typically appears as a sudden reboot right after a card is approved. Ensure the battery is fully charged before high-volume use — a cell below 3.6V under load is the usual cause.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415940071514,"sku":"BWCS-IML220SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415940104282,"sku":"BWCS-IML220SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415940137050,"sku":"BWCS-IML220SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IML220SL-1.webp?v=1779758202","url":"https:\/\/batteryweb.com\/products\/rea-card-rea-t6-flex-replacement-battery-37v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}