{"product_id":"symbol-barcode-scanner-replacement-battery-74v-2000mah-li-ion","title":"Symbol 29518 Barcode Scanner 7.4V Compatible Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSymbol Barcode Scanner — 7.4V Li-ion Replacement Battery (29518)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2000mAh Li-ion battery for Symbol barcode scanners. It replaces OEM part numbers 29518, 38403, 46607, 52030, C8872A, and EI-D-LI1. These scanners are used in retail, warehouse, and logistics environments where a dead battery stops work.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMulti-part compatibility across Symbol scanner lines:\u003c\/strong\u003e\n    Several Symbol scanner generations share the same voltage rail, connector pinout, and BMS handshake protocol — that is why one cell pack covers six OEM part numbers. The battery management circuit in each scanner validates cell voltage and thermistor signal before allowing discharge. This pack satisfies both checks.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on Symbol scanner hardware. The BMS accepted the pack without fault codes, held cell balance across full discharge, and the protection circuit tripped correctly at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use initialisation on Symbol scanners:\u003c\/strong\u003e\n    After installing this pack, run a full scan cycle and let the scanner display reach its idle screen before docking it to charge. Symbol scanners map battery state during active use — skipping this step can cause the charge indicator to report inaccurately on the first session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy Symbol scanners shut down mid-scan session with a new battery installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSymbol scanners draw a sharp current spike each time the laser or imager module fires. If the battery's internal resistance is high — common in aged or deeply discharged cells — the voltage at the battery terminals drops briefly below the BMS cutoff threshold during that spike. The scanner interprets this as cell failure and shuts down. A new, fully charged pack at low internal resistance eliminates the voltage sag that triggers the cutoff. If shutdowns persist after fitting this pack, charge the battery fully before the first session so resting voltage sits at or above 8.3V.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScanner won't recognise the battery after it sat unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the pack voltage drops below roughly 6.0V, the Symbol scanner's BMS enters a lockout state and refuses to power the device. The fix is a slow pre-charge: place the pack in the dock for 20–30 minutes without powering the scanner on. This trickle current brings cells back above the BMS recovery threshold. Once the dock LED shifts from fault to charging, the scanner will power on normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360794902618,"sku":"BWCS-LI1SL-1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360794935386,"sku":"BWCS-LI1SL-2","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360794968154,"sku":"BWCS-LI1SL-3","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LI1SL-1.webp?v=1778616259","url":"https:\/\/batteryweb.com\/products\/symbol-barcode-scanner-replacement-battery-74v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}