{"product_id":"elca-mirage-m-replacement-battery-74v-3400mah-li-ion","title":"ELCA MIRAGE-M Replacement Battery 7.4V 3400mAh LI-TE","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eELCA MIRAGE-M \/ BRAVO-M — 7.4V Li-ion Replacement Battery (LI-TE)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 3400mAh Li-ion battery replaces the OEM LI-TE cell in ELCA MIRAGE-M and BRAVO-M wireless crane remote controls. It fits the same battery compartment and connector as the original, maintaining the voltage rail the remote's transmitter board requires. Capacity is 25.16Wh as supplied.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMIRAGE-M and BRAVO-M platform fit:\u003c\/strong\u003e\n    Both models share the same 7.4V two-cell Li-ion architecture, connector pinout, and BMS communication handshake — that is why one part number covers both. Swapping between platforms does not require firmware or charger changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on the MIRAGE-M platform. The BMS initialised correctly, voltage held steady across solenoid activation events, and the low-battery indicator did not trigger until the cell reached the expected cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eStorage charge for infrequent crane use:\u003c\/strong\u003e\n    Crane remotes often sit idle between jobs. If the remote will be unused for more than three weeks, charge the battery first. Li-ion cells discharged below 2.5V per cell enter BMS lockout — the charger may show activity but the cell will not recover.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSolenoid activation causing power dropout on a freshly installed battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a crane remote fires a solenoid or relay, the inrush current spike can briefly pull the battery bus voltage below the BMS protection threshold. If the battery arrived at storage voltage — typically 3.7V per cell — its internal impedance is higher than a fully charged cell, which makes it more vulnerable to that spike. The BMS interprets the voltage dip as an overcurrent event and shuts down the output rail. Charge the battery fully to 8.4V before the first operational use to lower cell impedance and keep the bus stable during activation.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRemote showing low battery immediately after swapping in a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-ion cell ships at roughly 50–60% state of charge — around 7.3–7.5V — not at full voltage. The MIRAGE-M remote reads cell voltage to determine charge state, and at storage voltage the indicator correctly flags a low condition. This is not a faulty battery. Connect the battery to the ELCA charger and run a full charge cycle until the charger indicates complete, which puts the pack at 8.4V, before returning the remote to service.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360047136858,"sku":"BWCS-ECH114BX-1","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360047169626,"sku":"BWCS-ECH114BX-2","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360047202394,"sku":"BWCS-ECH114BX-3","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ECH114BX-1.webp?v=1778610710","url":"https:\/\/batteryweb.com\/products\/elca-mirage-m-replacement-battery-74v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}