{"product_id":"dolphin-99ex-replacement-battery-37v-5200mah-li-ion","title":"Dolphin 99EX Replacement Battery 3.7V 5200mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDolphin 99EX Series — 3.7V Li-ion Replacement Battery (99EX-BTEC-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 5200mAh Li-ion replacement battery for the Dolphin 99EX, 99EXhc, and 99GX rugged handheld scanners. It matches the OEM voltage rail and physical form factor of the original pack. The 99EX-BTEC-1 and 99EX-BTES-1 part numbers both cross to this cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e99EX, 99EXhc, and 99GX compatibility:\u003c\/strong\u003e\n    These models share the same battery bay dimensions, 3.7V logic rail, and BMS handshake protocol — one cell fits all three without any adapter or firmware change.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through a full charge-discharge cycle on the 99EX platform. The BMS communicated correctly with the scanner's charge controller, and the protection circuit responded to simulated over-draw conditions without latching off.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-shift charging on the Dolphin cradle:\u003c\/strong\u003e\n    After installing, place the 99EX in its charging cradle and run a full cycle before starting work. The scan trigger and wireless radio together draw a sharp inrush current when the cell is near minimum — a fully charged cell prevents the BMS from tripping on that first scan burst of the shift.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCradle showing charging error on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new pack sitting at storage charge — typically around 3.6V — can trigger a charging fault on the 99EX dock if the contact resistance is high. The cradle interprets the low initial current as a failed cell rather than a fresh one. Wipe the gold contacts on both the battery and the dock with a dry cloth, then reseat the scanner firmly. If the fault clears, the issue was contact resistance, not the cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScanner losing wireless connection during rapid scan bursts\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 99EX runs its wireless radio and imager from the same cell simultaneously. During a rapid scan burst, the combined draw can cause a voltage sag that drops the radio below its minimum operating threshold — the connection drops even though the scanner itself stays on. This is more common with a degraded original pack but can also occur if a replacement cell is installed without a prior full charge. Charge the battery to 100% before a high-throughput shift and the voltage sag stays within the radio module's tolerance range.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43324830482522,"sku":"BWCS-HY9910BL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43324830515290,"sku":"BWCS-HY9910BL-2","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43324830548058,"sku":"BWCS-HY9910BL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HY9910BL-1.webp?v=1778123166","url":"https:\/\/batteryweb.com\/products\/dolphin-99ex-replacement-battery-37v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}