{"product_id":"capitel-cbs718-replacement-battery-37v-1050mah-li-ion","title":"Capitel CBS718 Compatible Battery 3.7V 1050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCapitel CBS718 \/ S718 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 1050mAh (3.89Wh) Li-ion cell for the Capitel CBS718 and S718 smartphones. It replaces the original battery when the phone no longer holds charge or shuts down unexpectedly. Dimensions are 55.42 × 35.01 × 5.41mm — measure your original before fitting if you are unsure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCBS718 and S718 compatibility:\u003c\/strong\u003e\n    Both models run the same 3.7V battery bay and share connector placement, so one cell covers both. The BMS handshake requirements are identical across the two variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles on compatible hardware. The BMS accepted charge at the correct CV\/CC profile and the protection circuit tripped cleanly at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and complete one full discharge-charge cycle. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before any high-current charging begins.\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 CBS718 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe CBS718's fuel gauge IC stores a discharge curve calibrated to the original cell. A new cell with a slightly different internal resistance profile hits a voltage cliff at a different state of charge. The phone's modem or screen draws a current spike, the voltage drops below the shutdown threshold, and the OS cuts power even though the reported percentage looks safe. One full discharge-to-shutdown followed by a complete charge resets the coulomb counter and resolves this.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not powering on after the battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells stored at low charge self-discharge over time. If the cell voltage drops below roughly 2.5V, the BMS enters a lockout state and blocks normal charging to prevent cell damage. The phone will appear completely dead. Connect to a wall charger — not a PC port — and leave it for 20–30 minutes without pressing any buttons. Most BMS circuits re-initialise once the charger pushes voltage back above the recovery threshold of approximately 2.9V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405005652058,"sku":"BWCS-ZTS302SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405005684826,"sku":"BWCS-ZTS302SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405005717594,"sku":"BWCS-ZTS302SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTS302SL-1.webp?v=1779369820","url":"https:\/\/batteryweb.com\/products\/capitel-cbs718-replacement-battery-37v-1050mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}