{"product_id":"sumup-sumup-air-replacement-battery-37v-1200mah-li-ion","title":"SumUp Air Compatible Battery 3.7V 1200mAh DTS-1300-SW","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSumUp Air \/ AIR1E215 — 3.7V Li-ion Replacement Battery (DTS-1300-SW)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh Li-ion battery for the SumUp Air card reader (AIR1E215). It replaces OEM part DTS-1300-SW and fits directly into the Air's battery bay without any modification. When the original cell degrades and the reader dies mid-shift, this is the swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSumUp Air and AIR1E215 fit:\u003c\/strong\u003e\n    Both model variants use the same 3.7V cell, the same connector, and the same BMS handshake. One battery covers both SKUs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge cycles on the SumUp Air and confirmed the BMS accepted the new cell without error flags. Charge IC entered normal CC\/CV mode — no protection trip, no fault state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-deployment calibration:\u003c\/strong\u003e\n    After fitting the battery, complete one full transaction cycle before using the terminal in a live environment. The SumUp Air maps battery capacity during normal operation and needs at least one complete power cycle to register 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\"\u003eSumUp Air rebooting mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA fresh cell can trigger a BMS overcurrent trip if the terminal attempts a high-draw event — like a receipt print or wireless burst — before the protection circuit has settled. The BMS on a new cell starts conservatively and tightens the overcurrent threshold until it learns the load profile. This causes an unexpected reboot that looks like a firmware fault but is actually a protection event. Run two or three complete transaction cycles on the new battery and the trip threshold self-adjusts to normal operating current.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal stuck at 99% charge and won't drop — new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the charge IC enters top-off mode on a new cell — it holds the cell at float voltage and the fuel gauge reports 99% rather than 100% until the first full discharge-recharge cycle completes. It is not a faulty battery or a faulty charger. Run the terminal down to the low-battery warning, then charge it uninterrupted to completion. After that cycle, the gauge re-anchors its 100% reference and reads correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415925915738,"sku":"BWCS-SUP215BL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415925948506,"sku":"BWCS-SUP215BL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415925981274,"sku":"BWCS-SUP215BL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SUP215BL-1.webp?v=1779757974","url":"https:\/\/batteryweb.com\/products\/sumup-sumup-air-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}