{"product_id":"handheld-dolphin-7850-replacement-battery-74v-1800mah-li-ion","title":"HandHeld Dolphin 7850 Barcode Scanner Replacement Battery 7.4V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHandHeld Dolphin 7850 — 7.4V Li-ion Replacement Battery (200-00059-6)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 1800mAh Li-ion battery replaces the OEM pack in the Honeywell Dolphin 7850 mobile computer. It fits the Dolphin 7850 handheld barcode scanner used in retail, warehouse, and field service environments. Voltage and cell count match the original spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDolphin 7850 platform fit:\u003c\/strong\u003e\n    The 7850 runs a 7.4V two-cell Li-ion rail with a proprietary BMS handshake at the dock connector. This pack matches that voltage rail and connector pinout, so the device firmware recognises the battery and reports charge state correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge, full discharge, and re-charge on a Dolphin 7850 unit. The BMS negotiated cleanly on every cycle — no false low-battery flags, no mid-session cutoffs during scan trigger pulls.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-shift preparation:\u003c\/strong\u003e\n    After installing, seat the scanner in its cradle for a complete charge cycle before the first pick-and-pack shift. The scan trigger draws inrush current that is highest when the cell is near minimum voltage — a fully charged pack prevents a false BMS trip on the 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 a charging error on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Dolphin 7850 cradle checks contact resistance at the battery terminals before starting a charge cycle. If the dock throws a charge error on a fresh pack, the most likely cause is surface oxidation or debris on the gold contacts — not a faulty battery. Remove the pack, wipe the terminals with a dry lint-free cloth, reseat firmly, and check that the cradle LED cycles to amber within 10 seconds. If the error persists, clean the cradle contacts with isopropyl alcohol and allow them to dry completely before reseating.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScanner losing wireless connection during a rapid scan burst\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the Dolphin 7850, the wireless radio and the scan imager share the same battery rail. During a rapid scan burst, combined inrush from the imager and the 802.11 radio can pull the cell voltage down briefly, triggering the BMS undercurrent threshold and dropping the wireless association. This is more common when the battery is below 20% charge. Keep the pack above 30% during high-frequency scan sessions — the voltage sag at 3.5V per cell under combined load is enough to cause the drop-out.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43324742991962,"sku":"BWCS-HD7850BL-1","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43324743024730,"sku":"BWCS-HD7850BL-2","price":67.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43324743057498,"sku":"BWCS-HD7850BL-3","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HD7850BL-1.webp?v=1778123055","url":"https:\/\/batteryweb.com\/products\/handheld-dolphin-7850-replacement-battery-74v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}