{"product_id":"archos-50c-neon-replacement-battery-37v-1400mah-li-ion","title":"Archos 50c Neon Replacement Battery 3.7V 1400mAh AC1850A","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eArchos 50c Neon \/ 45B Helium — 3.7V Li-ion Replacement Battery (AC1850A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 1400mAh Li-ion cell rated at 5.18Wh, replacing part number AC1850A. It fits the Archos 50c Neon and Archos 45B Helium Android smartphones. Install it when the original cell no longer holds a usable charge or fails to power the device.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e50c Neon and 45B Helium compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, connector pinout, and BMS communication protocol — the AC1850A part number covers both. No adapter or modification is needed.\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 discharge on both device models and confirmed the BMS handshake completes without fault codes. The protection circuit tripped correctly at the low-voltage cutoff threshold during deep-discharge testing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable fast charging and run one full discharge-to-charge cycle before normal use. The fuel gauge IC on these Archos devices calibrates against the cell's discharge curve — skipping this step causes the percentage readout to drift against the new cell's actual capacity.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the Archos 50c Neon after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a capacity defect. The fuel gauge IC still holds the discharge curve from the old degraded cell and predicts remaining charge incorrectly. When the modem or display draws a burst of current, the new cell's voltage drops below the cutoff threshold before the gauge reaches 0%. One complete discharge-to-charge cycle lets the coulomb counter relearn the new cell's actual voltage-versus-capacity curve and eliminates premature shutdowns.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the cell voltage drops below approximately 2.5V, the BMS enters lockout mode and blocks charge current to prevent thermal runaway on a deeply discharged cell. The phone will show no response when connected to a charger. Connect the device to a wall charger — not a USB port — and leave it undisturbed for 20–30 minutes. Most BMS circuits on these Archos models will accept a trickle recovery current and release lockout once the cell climbs back above 3.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392028967002,"sku":"BWCS-AVC500SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392028999770,"sku":"BWCS-AVC500SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392029032538,"sku":"BWCS-AVC500SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AVC500SL-1.webp?v=1779143030","url":"https:\/\/batteryweb.com\/products\/archos-50c-neon-replacement-battery-37v-1400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}