{"product_id":"gemalto-magic-3-w-replacement-battery-36v-700mah-ni-mh","title":"Gemalto Magic 3 W Replacement Battery A0285A 3.6V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGemalto Magic 3 W \/ Magic3 M8 — 3.6V Ni-MH Replacement Battery (A0285A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V 700mAh Ni-MH replacement battery for the Gemalto Magic 3 W and Magic3 M8 wireless payment terminals. It matches OEM part numbers A0285A, U0156783, and A0170A. The battery slots into the terminal's rear compartment and restores field operation for merchants processing card transactions away from a fixed power source.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMagic 3 W and Magic3 M8 fitment:\u003c\/strong\u003e\n    Both models run the same 3.6V battery bay, share the same connector pinout, and use the same BMS handshake protocol — one cell covers both terminals without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through repeated transaction sequences including receipt printing and wireless data transmission. The BMS held stable across the combined draw peaks and did not trigger overcurrent cutoff during printer motor engagement.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for payment terminals:\u003c\/strong\u003e\n    After installation, run one complete transaction cycle — including a receipt print — before deploying in a live environment. The terminal maps battery capacity during normal operation and needs at least one full 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 rebooting mid-transaction after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a new Ni-MH cell has not yet been conditioned, its internal resistance is slightly elevated. The receipt printer motor draws a sharp current spike at the moment of engagement — on a high-resistance cell, that spike can pull the terminal voltage low enough to trip the BMS overcurrent protection. The terminal interprets this as a fault and reboots. Running two or three full transaction cycles brings cell resistance down and eliminates the trip threshold issue.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not powering on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–3% per day without active use. A terminal stored for several weeks can arrive at a voltage too low for the BMS to allow a normal boot — it presents as a completely dead unit with no screen response. Connect the terminal to its original charger and leave it on charge for a minimum of 90 minutes before attempting to power on. If the charge indicator does not respond within 10 minutes, the cell voltage has likely dropped below 2.8V and the charge IC needs more time to trickle-charge the cell back above the recovery threshold before fast-charge begins.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415939285082,"sku":"BWCS-GMF800BL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415939317850,"sku":"BWCS-GMF800BL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415939350618,"sku":"BWCS-GMF800BL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GMF800BL-1.webp?v=1779758085","url":"https:\/\/batteryweb.com\/products\/gemalto-magic-3-w-replacement-battery-36v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}