{"product_id":"custom-battery-packs-replacement-battery-37v-320mah-li-polymer","title":"Custom Battery Packs 1ICP4\/25\/37 Compatible Battery 3.7V 320mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCustom Battery Packs 1ICP4\/25\/37 — 3.7V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 320mAh (1.18Wh) lithium-polymer cell replaces the OEM pack identified by part number 1ICP4\/25\/37. At 35.00 × 22.50 × 4.30mm, it matches the original footprint for a direct physical swap. Verify your original pack's part number against 1ICP4\/25\/37 before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOEM part number match:\u003c\/strong\u003e\n    Devices using the 1ICP4\/25\/37 pack share a defined voltage rail at 3.7V nominal and a connector pinout tied to that form factor. Swapping to any cell outside that voltage window or footprint will cause fit or recognition failures.\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, confirming the BMS reaches full charge cutoff at 4.2V and triggers low-voltage protection before cell damage occurs. Capacity matched the rated 320mAh within normal tolerance.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration:\u003c\/strong\u003e\n    After installing, run one full charge-to-discharge cycle before trusting any capacity indicator reading. Battery packs with integrated fuel gauges need this cycle to recalibrate against the new cells — skipping it causes the gauge to read inaccurately 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\"\u003ePack not accepted by device after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome compact devices run a voltage range check or BMS handshake on power-up before accepting a new pack. A freshly shipped lithium-polymer cell sits at storage voltage — typically 3.6–3.7V — which can fall just outside the window the device expects at boot. Connect the pack to a charger first and bring it to a full 4.2V charge before inserting it into the device. If the device still rejects it, power-cycle the host device with the pack seated and retry.\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 charge IC often limits current while it characterises the new cells, which means the pack may terminate early or show a lower-than-expected charge level. This is a conditioning behaviour, not a defect. Run one complete charge cycle through to termination, then discharge the device normally and recharge fully. Capacity and charge acceptance normalise after that first complete cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333476089946,"sku":"BWCS-CM047SL-1","price":205.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333476122714,"sku":"BWCS-CM047SL-2","price":245.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333476155482,"sku":"BWCS-CM047SL-3","price":275.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CM047SL-1.webp?v=1778212809","url":"https:\/\/batteryweb.com\/products\/custom-battery-packs-replacement-battery-37v-320mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}