{"product_id":"custom-battery-packs-replacement-battery-37v-1200mah-li-polymer","title":"2ICP\/65\/30\/30 Compatible Battery 3.7V 1200mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCustom Battery Packs 2ICP\/65\/30\/30 1S2P — 3.7V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh (4.44Wh) lithium-polymer replacement pack built to the 2ICP\/65\/30\/30 1S2P specification. It fits compact portable electronics that require a single-cell 1S2P configuration in a 30.80 × 30.00 × 13.50 mm footprint. If your device's original pack has degraded or failed, this replacement restores full operating voltage without replacing the device.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e1S2P cell configuration:\u003c\/strong\u003e\n    Two cells in parallel share a single voltage rail at 3.7V nominal. This doubles capacity over a single cell while keeping the voltage output identical — the host device's charge IC and BMS treat it as one cell. Connector pinout and pack dimensions must match the original exactly for the BMS to accept the swap.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge and discharge on the bench using a cell analyser. The BMS tripped correctly at low-voltage cutoff and accepted a full charge cycle without thermal event. Measured capacity came within 4% of the rated 1200mAh after the first conditioning cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge calibration after swap:\u003c\/strong\u003e\n    If your device has an integrated fuel gauge or capacity indicator, it will read inaccurately after fitting a new pack. Run one complete charge-discharge cycle immediately after installation so the gauge firmware can map its readings against the new cells. Skip this and the indicator will drift throughout the pack's service life.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack running at lower voltage than rated on first use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-polymer packs ship at storage voltage — typically 3.6V to 3.85V — not at full 4.2V charge. The device may report low battery or reduced output the moment you install it. This is not a defect. Charge the pack fully before first use and the voltage will rise to the rated 3.7V nominal operating range. Most devices will not trigger their low-battery warning again once the first charge completes.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack not reaching full charge on first cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge, many host device charge ICs apply a reduced current to new or previously deep-discharged cells. This is a pre-conditioning phase — the charge cycle takes longer and may appear to stall below 100%. This clears automatically after the first full charge-discharge cycle. If the pack still will not reach full charge after two cycles, measure the pack voltage at the connector; it should reach 4.15V to 4.20V at end of charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333484707930,"sku":"BWCS-CM033SL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333484740698,"sku":"BWCS-CM033SL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333484773466,"sku":"BWCS-CM033SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CM033SL-1.webp?v=1778212808","url":"https:\/\/batteryweb.com\/products\/custom-battery-packs-replacement-battery-37v-1200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}