{"product_id":"tyro-indus-1s-wireless-e-stop-replacement-battery-37v-1800mah-li-ion","title":"Tyro Indus 1S Wireless E-stop Compatible Battery 3.7V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTyro Indus 1S Wireless E-stop — 3.7V Li-ion Replacement Battery (U80526-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1800mAh Li-ion cell replaces the factory battery in the Tyro Indus 1S Wireless E-stop remote (OEM part U80526-1). The Indus 1S is a wireless emergency stop transmitter used in crane and material handling operations. Voltage and capacity match the original specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIndus 1S transmitter fit:\u003c\/strong\u003e\n    The U80526-1 cell runs the wireless transmitter circuit at 3.7V nominal. The BMS on this cell communicates state-of-charge to the remote's onboard controller, which drives the low-battery indicator before cutoff kicks in. No voltage mismatch, no connector modification needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through repeated E-stop activation sequences and monitored BMS cutoff behaviour under the inrush current spikes that occur during solenoid trigger events. Voltage held steady across the test window with no unexpected dropouts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMonthly charge during idle periods:\u003c\/strong\u003e\n    Crane remotes often sit unused for weeks between jobs. Li-ion cells discharged below 2.5V enter deep-discharge lockout — the BMS disables output and many chargers will not initiate a charge cycle. Connect the remote to its charger once a month during any extended storage period to keep the cell above that threshold.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Indus 1S won't power on after months of infrequent use\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells have a self-discharge rate of roughly 2–3% per month. After several months on a shelf, the cell voltage can drop below 2.5V — the point at which most BMS circuits open the protection circuit and block output entirely. At that voltage, the remote shows no signs of life: no LED, no RF transmission, no response to the power button. Connecting the charger for 30 minutes allows a quality charger to trickle current into the cell, nudging voltage above the BMS recovery threshold before normal charging resumes.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRemote showing low battery alert immediately after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacement cells ship at storage voltage — typically 3.6–3.7V — not fully charged. Some remotes interpret anything below 3.8V as a low-battery condition and flag it immediately after power-on. This is not a fault with the cell. Charge the battery fully before first use; the alert will clear once the cell reaches approximately 4.1–4.2V under the charger.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360041599066,"sku":"BWCS-BIS100BL-1","price":49.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43360041631834,"sku":"BWCS-BIS100BL-2","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43360041664602,"sku":"BWCS-BIS100BL-3","price":64.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BIS100BL_1.webp?v=1778610710","url":"https:\/\/batteryweb.com\/products\/tyro-indus-1s-wireless-e-stop-replacement-battery-37v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}