{"product_id":"wiko-lenny-5-replacement-battery-38v-2600mah-li-ion","title":"Wiko Lenny 5 Compatible Battery 3.8V 2600mAh 115823","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWiko Lenny 5 — 3.8V Li-ion Replacement Battery (115823)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 2600mAh (9.88Wh) Li-ion battery for the Wiko Lenny 5 smartphone. It replaces OEM part number 115823 and fits the Lenny 5 only — confirm your model before ordering. Capacity matches the original cell specification pulled from the product data.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLenny 5 fitment:\u003c\/strong\u003e\n    The Lenny 5 uses a removable cell format with a fixed connector pinout and BMS handshake tied to the 3.8V nominal rail. This replacement matches that voltage and connector spec so the phone's charge IC recognises the cell without throwing a battery error on boot.\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 cleanly at both ends — no premature low-voltage trip and no overcharge overshoot past 4.35V. Capacity output tracked within expected range of the rated 2600mAh.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fuel gauge recalibration:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge down to automatic shutdown, then charge fully to 100%. This gives the fuel gauge IC one clean reference cycle against the new cell's actual discharge curve before 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\"\u003eWhy the Lenny 5 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Lenny 5 uses a coulomb-counter-based fuel gauge IC that builds its percentage model from the original cell's charge and discharge history. When you install a new cell, that stored model no longer matches the new cell's actual voltage-to-capacity curve. The phone may show 100% at 4.1V or drop suddenly from 40% to shutting down. One full discharge-to-shutdown followed by a full uninterrupted charge to 100% resets the coulomb counter against the new cell and restores accurate percentage reporting.\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, screen backlight, or both spike current demand faster than the cell can sustain voltage. A new cell with an uncalibrated fuel gauge reads 25% remaining, but under load the voltage collapses below the BMS cutoff threshold — typically around 3.0V — and the phone shuts off as a protection measure. It is not a faulty battery. Run the calibration cycle described above: one full discharge to automatic shutdown, then charge to 100% without interruption. After that cycle, the fuel gauge tracks the voltage cliff accurately and the percentage figure at shutdown will be close to 0%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391944294490,"sku":"BWCS-WKL500SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391944327258,"sku":"BWCS-WKL500SL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391944360026,"sku":"BWCS-WKL500SL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WKL500SL-1.webp?v=1779142694","url":"https:\/\/batteryweb.com\/products\/wiko-lenny-5-replacement-battery-38v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}