{"product_id":"blaupunkt-lucca-52-replacement-battery-37v-2200mah-li-ion","title":"Blaupunkt Lucca 5.2 GPS Navigator Replacement Battery 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlaupunkt Lucca 5.2 \/ Travelpilot Lucca — 3.7V Li-ion Replacement Battery (7612201334)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2200mAh Li-ion cell replaces the original battery in the Blaupunkt Lucca 5.2 and Travelpilot Lucca portable GPS navigators. It matches the OEM voltage rail, connector, and physical dimensions (67.59 × 18.54 × 18.54mm) the device expects. Capacity is drawn from product data — 8.14Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLucca 5.2 and Travelpilot Lucca fitment:\u003c\/strong\u003e\n    Both models share the same 3.7V single-cell architecture, physical bay, and JST-style connector, so one SKU covers both. The BMS handshake is handled by the navigator's internal charge circuit, not the cell itself.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and full discharge on a GPS navigation load profile. The BMS in the Lucca 5.2 accepted the cell without fault flags, and charge termination cut off cleanly at 4.2V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold-start satellite acquisition after fitting:\u003c\/strong\u003e\n    After fitting this cell and powering on, take the device outdoors immediately. A full power interruption triggers a cold start — the GPS receiver has lost its ephemeris data and needs a clear sky view to reacquire satellites. First fix typically takes 5–10 minutes; subsequent warm starts are much faster.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGPS accuracy reduced at low battery in the Lucca 5.2\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen cell voltage drops toward the low-end threshold — around 3.4V on this chemistry — some GPS units reduce receiver sensitivity to protect remaining charge. On the Lucca 5.2, this can show up as position drift or a reduced fix rate before the low-battery indicator even appears on screen. The receiver is pulling less power, so the signal-to-noise margin tightens and weaker satellite signals drop out. Keeping the cell above 3.6V during active navigation avoids this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLucca 5.2 shutting off without warning before the battery indicator empties\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the navigator's fuel gauge is calibrated to the original cell's discharge curve. A new cell of the same capacity but slightly different internal resistance can hit the device's voltage cutoff threshold before the on-screen indicator reaches empty. The fix is to run two or three full charge-to-discharge cycles — the device recalibrates its voltage-to-capacity mapping as it learns the new cell's curve. After the second full cycle, the warning indicator and actual shutoff should align.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377626710106,"sku":"BWCS-BTC520SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377626742874,"sku":"BWCS-BTC520SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377626775642,"sku":"BWCS-BTC520SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BTC520SL-1.webp?v=1778771766","url":"https:\/\/batteryweb.com\/products\/blaupunkt-lucca-52-replacement-battery-37v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}