{"product_id":"handheld-dolphin-7900-replacement-battery-74v-2200mah-li-ion","title":"HandHeld Dolphin 7900 Replacement Battery 7.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHandHeld Dolphin 7900 \/ 9500 \/ 9550 \/ 9900 — 7.4V Li-ion Replacement Battery (200-00591-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 2200mAh Li-ion battery replaces OEM part 200-00591-01 in the HandHeld Dolphin 7900, 9500, 9550, and 9900 rugged mobile computers. These handheld barcode scanners are common in retail, logistics, and warehouse inventory operations where a dead pack mid-shift stops the work. Voltage and cell chemistry match the original specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDolphin 7900, 9500, 9550, and 9900 compatibility:\u003c\/strong\u003e\n    These four Dolphin models share the same 7.4V battery rail, connector pinout, and BMS handshake protocol — one pack fits all four without any adapter or firmware workaround.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the Dolphin's BMS under combined wireless radio and scan trigger loads. The BMS accepted the pack without fault codes, and protection thresholds — overvoltage, overcurrent, and thermal — all tripped at expected limits.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-shift prep for Dolphin scanners:\u003c\/strong\u003e\n    After installing, seat the scanner in its charging cradle for a full charge cycle before pulling triggers on the floor. Scan trigger inrush current is highest when the cell voltage is near minimum — a fully charged pack prevents a false BMS trip on the first pick-and-pack run.\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\"\u003eDolphin cradles communicate with the battery pack through gold-plated dock contacts on the base of the scanner. Oxidation, dust, or moulding residue on a new pack's contacts can push contact resistance high enough for the cradle to log a charge fault. Wipe the battery contacts and the cradle's dock pins with a dry lint-free cloth, then reseat the scanner firmly. If the error clears, the cell was fine — the connection was not.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScanner dropping wireless connection during rapid scan bursts\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Dolphin 7900 runs both its wireless radio and its scan engine simultaneously during a fast-scan burst. That combined inrush can pull cell voltage down sharply if the pack is already below 7.0V. The radio subsystem is first to drop when voltage sags — it loses its keep-alive packet to the access point and disconnects. Charge the pack to full before a heavy-scan shift and check cell voltage is above 7.2V before deploying.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43324811477082,"sku":"BWCS-HD7900BL-1","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43324811509850,"sku":"BWCS-HD7900BL-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43324811542618,"sku":"BWCS-HD7900BL-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HD7900BL-1.webp?v=1778123165","url":"https:\/\/batteryweb.com\/products\/handheld-dolphin-7900-replacement-battery-74v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}