{"product_id":"nikon-coolpix-p1-replacement-battery-37v-650mah-li-ion","title":"NiKon EN-EL8 Coolpix P1 Replacement Battery 3.7V 650mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNiKon Coolpix P1 \/ S1 Series — 3.7V Li-ion Replacement Battery (EN-EL8)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 650mAh Li-ion replacement for the NiKon EN-EL8 battery. It fits the Coolpix P1, P2, S1, and S2, along with thirteen additional Coolpix models that share the same EN-EL8 form factor and voltage rail. The cell matches OEM dimensions at 46.60 × 35.30 × 5.00mm and drops into any EN-EL8-compatible charger or camera body.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEN-EL8 platform compatibility:\u003c\/strong\u003e\n    The Coolpix P1, P2, S1, and S2 share a single battery platform — same 3.7V rail, same physical footprint, same connector orientation. NiKon standardised the EN-EL8 across compact Coolpix models released in that generation, so one replacement covers the full range without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge passes on a Coolpix body. The BMS accepted the cell without error flags, held voltage above 3.5V through the discharge curve, and reported capacity within normal tolerance of the OEM cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle camera body charging:\u003c\/strong\u003e\n    On first install, charge the cell inside the camera body using the OEM charger cable rather than an external bay charger. Some Coolpix BMS firmware requires an in-body charge cycle before it maps the new cell's discharge curve for accurate battery-remaining display.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Coolpix P1 reports a dead battery indicator on a freshly charged replacement cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Coolpix P1 uses a voltage-threshold system to estimate remaining charge rather than a fuel-gauge IC. A new replacement cell has a slightly different internal resistance profile than the aged OEM cell the camera learned from, so the voltage readings map differently at rest. The camera can interpret a resting voltage of 3.9–4.0V from a new cell as lower than it actually is during the first few cycles. Running one or two full charge-discharge cycles through the camera body recalibrates the threshold mapping and clears the false low-battery flag.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically mid-shoot on the Coolpix display\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the battery indicator skips from 60% to 20% mid-session without warning, the cause is usually the camera's discharge curve model mismatching the new cell's actual output profile. Flash charging draws a sharp current spike that causes a momentary voltage dip — the Coolpix interprets that dip as a lower state of charge and snaps the indicator down. This settles after two or three full cycles as the BMS builds a better picture of the cell's real discharge behaviour. If jumping continues past three cycles, check resting voltage with a multimeter — a fully charged EN-EL8 replacement should read 4.15–4.20V at rest.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333860524122,"sku":"BWCS-ENEL8-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333860556890,"sku":"BWCS-ENEL8-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333860589658,"sku":"BWCS-ENEL8-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ENEL8_1.webp?v=1778213292","url":"https:\/\/batteryweb.com\/products\/nikon-coolpix-p1-replacement-battery-37v-650mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}