{"product_id":"custom-battery-pack-replacement-battery-37v-2150mah-li-ion","title":"1ICP4\/58\/70 1S1P Li-ion Compatible Battery 3.7V 2150mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCustom Battery Pack 1ICP4\/58\/70 1S1P — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V Li-ion single-cell replacement pack rated at 2150mAh (7.96Wh), referencing OEM part number 1ICP4\/58\/70 1S1P. It matches the flat-cell format — 75.83 × 61.18 × 4.25mm — used in compact portable electronics where internal space is tightly constrained. Confirm your original pack carries this part number before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSingle-cell 1S1P configuration:\u003c\/strong\u003e\n    One cell, no series stacking — the pack delivers a nominal 3.7V with a charge ceiling of 4.2V and a BMS cutoff floor around 2.75–3.0V. Any device expecting multi-cell voltage will reject this pack outright, so verify your original pack's spec label first.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on a cell analyser. The BMS tripped correctly at the low-voltage cutoff and the pack accepted a full charge to 4.2V without thermal event or protection fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration:\u003c\/strong\u003e\n    If your device shows a fuel gauge or percentage indicator, run one complete charge-to-discharge cycle immediately after fitting. Integrated fuel gauges lose calibration when cells are swapped and will misread capacity until they complete one full reference cycle against the new cells.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack not accepted by device after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome devices run a voltage-range check or BMS handshake at power-on. If the pack ships at storage voltage — typically 3.6–3.8V — a device expecting a freshly charged cell at 4.1–4.2V may flag it as failed or incompatible. Charge the pack fully before inserting it for the first time. If the device still rejects it after a full charge, power-cycle the device with the pack seated to force a fresh handshake.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack not reaching full charge on the first cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge, the device's charge IC may apply a reduced current while it characterises the new cells — this is normal conditioning behaviour, not a fault. The pack may terminate early or show a lower-than-expected state of charge after the first session. Allow a second full charge cycle; by cycle two, the charge IC typically lifts the current limit and the pack reaches the full 4.2V termination point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333499977818,"sku":"BWCS-CM001SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333500010586,"sku":"BWCS-CM001SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333500043354,"sku":"BWCS-CM001SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CM001SL-1.webp?v=1778212807","url":"https:\/\/batteryweb.com\/products\/custom-battery-pack-replacement-battery-37v-2150mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}