{"product_id":"explay-infinity-replacement-battery-37v-1100mah-li-ion","title":"Explay Infinity Compatible Battery 3.7V 1100mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eExplay Infinity \/ Infinity II — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1100mAh Li-ion cell for the Explay Infinity and Infinity II smartphones. It replaces a degraded or failed original battery in either model. Voltage and capacity match the stock specification — 4.07Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInfinity and Infinity II compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions (58.93 × 46.05 × 5.23 mm), connector pinout, and 3.7V nominal voltage rail. The BMS handshake is identical across both, so one cell covers the pair 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 charge and discharge on the bench. The BMS held cutoff correctly at the low-voltage threshold and accepted a full charge without thermal event or early termination.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration tip:\u003c\/strong\u003e\n    On first use after installation, disable any fast-charge setting and run one full discharge-to-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging is applied to 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 replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff failure — the cell voltage drops sharply under load from the modem or display before the fuel gauge predicts it will. The OS reads 25% but the cell can no longer sustain the voltage rail under that current draw. The fix is a full recalibration cycle: drain the phone until it shuts itself off, then charge uninterrupted to 100% without using the device. After that cycle, the coulomb counter has a real discharge curve to work from and percentage readings stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eOS reporting wrong battery percentage after cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on the Explay Infinity was calibrated to the discharge curve of the original cell. A new cell with different internal resistance throws those reference points off immediately. You'll see jumps of 10–15% or a reading that stays frozen for long stretches. Run one full cycle — drain to auto-shutoff, charge to 100% at standard rate — and the IC will write a new baseline. Check the percentage reading holds steady under a screen-on load after that cycle; if it still jumps, repeat the cycle once more.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404254642266,"sku":"BWCS-GNN686SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404254675034,"sku":"BWCS-GNN686SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404254707802,"sku":"BWCS-GNN686SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GNN686SL-1.webp?v=1779369511","url":"https:\/\/batteryweb.com\/products\/explay-infinity-replacement-battery-37v-1100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}