{"product_id":"blu-dash-55-replacement-battery-37v-2150mah-li-ion","title":"BLU Dash 5.5 C816704260L Replacement Battery 3.7V 2150mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBLU Dash 5.5 \/ D470 Series — 3.7V Li-ion Replacement Battery (C816704260L)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2150mAh (7.96Wh) Li-ion replacement battery for the BLU Dash 5.5 smartphone, covering model variants D470, D470U, and D470L. It replaces OEM part number C816704260L. If your original cell holds a short charge or the phone shuts off unexpectedly, this cell is a direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eD470, D470U, D470L compatibility:\u003c\/strong\u003e\n    All three variants share the same 3.7V battery bay, connector pinout, and BMS handshake — one cell covers the entire D470 line without modification.\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 load discharge on the D470 platform. The BMS accepted charge without tripping, and voltage held stable under combined screen and modem load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first cycle:\u003c\/strong\u003e\n    After installing this cell, disable fast charging and run one complete discharge down to auto-shutoff before charging fully. This lets the fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current charging begins on an uncalibrated cell.\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 BLU Dash 5.5\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA worn cell loses the ability to sustain voltage under high-current draw from the modem radio or display backlight. The phone reads 25% remaining but the cell voltage collapses below the BMS cutoff threshold the moment load spikes. The OS never sees a low-voltage warning — it just cuts off. Replacing the cell resolves this, but one full recalibration cycle is needed before the fuel gauge IC reports accurate percentages again.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone not powering on after extended storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf a BLU Dash 5.5 sits unused for weeks with a degraded cell, the battery can drop below 2.5V — the point where the BMS locks out charging entirely to prevent cell damage. Plugging in a standard charger does nothing at this voltage. Use a charger that supports trickle or recovery mode, or apply a short burst from a bench power supply at 3.0V to bring the cell above the BMS re-enable threshold before charging normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404165972058,"sku":"BWCS-BLD470SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404166004826,"sku":"BWCS-BLD470SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404166037594,"sku":"BWCS-BLD470SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BLD470SL-1.webp?v=1779369251","url":"https:\/\/batteryweb.com\/products\/blu-dash-55-replacement-battery-37v-2150mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}