{"product_id":"blu-life-play-2-replacement-battery-37v-1200mah-li-ion","title":"BLU Life Play 2 Replacement Battery 3.7V 1200mAh C705804180L","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBLU Life Play 2 \/ L170i — 3.7V Li-ion Replacement Battery (C705804180L)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh Li-ion cell for the BLU Life Play 2 (L170i) smartphone. It replaces part number C705804180L when the original cell no longer holds charge or the phone shuts down unexpectedly. Physical dimensions are 77.95 × 50.03 × 4.10mm — confirm these match your tray before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLife Play 2 and L170i compatibility:\u003c\/strong\u003e\n    Both model numbers reference the same hardware revision. They share the same battery tray geometry, connector pinout, and BMS handshake protocol — one cell covers both.\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 Life Play 2 board. The BMS accepted the cell without error flags, and the charge IC reached cutoff voltage without interruption.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installation, run one complete discharge to shutdown and a full charge before re-enabling any fast-charge setting. This gives the fuel gauge IC one clean reference cycle against the new cell's discharge curve — skipping it causes erratic percentage readings early on.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Life Play 2 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Life Play 2 uses a coulomb-counting fuel gauge IC that builds its model around the original cell's discharge curve. When you install a new cell, that stored model no longer matches actual cell behaviour, so the percentage display lags or jumps. The fix is one full discharge-to-shutdown followed by an uninterrupted charge to 100%. After that cycle, the IC resets its reference and percentage tracking stabilises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage drops below the modem or display's minimum rail voltage under load — even though the reported percentage looks safe. The fuel gauge IC is still running on its old calibration curve, so it shows 20–30% while actual cell voltage has already sagged past the cutoff threshold. Run the phone down to a forced shutdown once, then charge fully without interruption. After that single calibration cycle, the voltage cliff shifts back into the low single digits where it belongs.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392037355610,"sku":"BWCS-BLL170SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392037388378,"sku":"BWCS-BLL170SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392037421146,"sku":"BWCS-BLL170SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BLL170SL-1.webp?v=1779143085","url":"https:\/\/batteryweb.com\/products\/blu-life-play-2-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}