{"product_id":"nokia-105-2023-replacement-battery-37v-1000mah-li-ion","title":"BL-L5J Nokia 105 2023 Replacement Battery 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNokia 105 2023 — 3.7V Li-ion Replacement Battery (BL-L5J)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1000mAh Li-ion replacement battery for the Nokia 105 2023 feature phone. It uses the BL-L5J form factor and slots directly into the original battery compartment. Voltage and cell dimensions match the OEM spec: 53.25 × 34.00 × 5.00mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNokia 105 2023 fit:\u003c\/strong\u003e\n    The 105 2023 runs a low-draw hardware platform — basic voice calls, SMS, and standby. The BL-L5J cell is the sole battery format Nokia specified for this revision. No adapter or modification is needed; the connector and physical envelope are unchanged from the factory part.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge on the Nokia 105 2023 platform. The BMS accepted the charge handshake on the first cycle, held voltage flat through standard call-load draws, and cut off cleanly at the low-voltage threshold without triggering premature shutdown.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge to automatic power-off, then charge uninterrupted to 100% before use. The Nokia 105 2023 uses a basic coulomb counter that calibrates its percentage reading against the first complete cycle — skipping this step causes the phone to report inaccurate charge levels from the start.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Nokia 105 2023 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 105 2023 stores a discharge curve from the original cell in its fuel gauge IC. When a new cell goes in, the stored curve no longer matches the actual cell chemistry and internal resistance. The percentage display can read 40% and then drop to zero with no warning. One full discharge-to-cutoff cycle followed by a full uninterrupted charge resets the reference curve. After that single cycle, percentage tracking stabilises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone won't power on after sitting in storage with a flat BL-L5J\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eIf the BL-L5J cell has discharged below approximately 2.5V during storage, the BMS enters a lockout state and the phone shows nothing when you press the power button. Connect the phone to a charger and leave it for 20–30 minutes without attempting to power it on — the charge IC needs to push a trickle current into the cell before the BMS will release the lockout. Once the cell recovers above 3.0V, the phone boots normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391793922138,"sku":"BWCS-NKL105SL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391793954906,"sku":"BWCS-NKL105SL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391793987674,"sku":"BWCS-NKL105SL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NKL105SL-1.webp?v=1779142036","url":"https:\/\/batteryweb.com\/products\/nokia-105-2023-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}