{"product_id":"mobistel-blade-replacement-battery-37v-1300mah-li-ion","title":"Mobistel Blade 3.7V 1300mAh Li-ion Compatible Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMobistel Blade — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1300mAh Li-ion replacement cell for the Mobistel Blade smartphone. It slots into the original battery bay and restores power to calls, messaging, and basic functions. Capacity figures are taken directly from product data — 4.81Wh at 3.7V nominal.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMobistel Blade fit:\u003c\/strong\u003e\n    The Blade uses a single-cell Li-ion pack at 3.7V nominal. The replacement cell matches that voltage rail and physical footprint — 43.50 x 47.00 x 6.10mm — so the connector seats without forcing.\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 under load conditions matching the Blade's draw profile. The BMS held cutoff voltage correctly and did not trip on a standard screen-on modem load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installing this cell, disable fast charging and run one full discharge-to-charge cycle before normal use. The Blade's fuel gauge IC is calibrated to the old cell's discharge curve — one complete cycle lets it map the new cell's voltage profile before reporting accurate percentages.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Blade reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Blade uses a fuel gauge IC that tracks charge state against a stored discharge curve. When you swap the cell, the IC still references the old, degraded curve. The new cell has a steeper, healthier voltage profile, so the gauge misreads state of charge — sometimes by 15–25%. One full discharge from 100% down to auto-shutdown, followed by a full charge, forces the coulomb counter to resync against the actual cell behaviour.\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 modem transmits or the screen peaks in brightness — both spike current draw sharply. If the fuel gauge IC hasn't recalibrated yet, it won't anticipate the voltage cliff the new cell hits under that load. The phone reads 25% but the cell voltage drops below 3.2V under load, and the BMS cuts output to protect the cell. Run the full recalibration cycle first — one discharge to shutdown, one charge to 100% — before treating the shutdown as a fault.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405093404762,"sku":"BWCS-ZTE950SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405093437530,"sku":"BWCS-ZTE950SL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405093470298,"sku":"BWCS-ZTE950SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTE950SL-1.webp?v=1779369970","url":"https:\/\/batteryweb.com\/products\/mobistel-blade-replacement-battery-37v-1300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}