{"product_id":"custom-battery-packs-replacement-battery-36v-1000mah-ni-mh","title":"AA3S1P1000 Compatible Battery 3.6V 1000mAh Ni-MH Pack","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCustom Battery Packs AA3S1P1000 — 3.6V Ni-MH Replacement Battery Pack\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 1000mAh Ni-MH replacement battery pack for OEM part number AA3S1P1000. Three cells wired in series deliver a stable 3.6V rail at 3.6Wh usable energy. It is a direct OEM-matched replacement for devices that specify this part number.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThree-cell series configuration:\u003c\/strong\u003e\n    Three Ni-MH cells wired in series share the same voltage rail and connector pinout as the original pack. The BMS expects all three cells to balance together — swap only with a matched 3S1P pack to avoid cell mismatch errors at the charge IC.\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 the bench. The BMS engaged correctly at both ends of the voltage window, and no premature cutoff was triggered during the conditioning run.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration:\u003c\/strong\u003e\n    Run one full charge-to-discharge cycle immediately after installation. Devices with integrated fuel gauges read cell state-of-charge from learned capacity data — a new pack starts without that history, so the first full cycle writes it fresh.\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 install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH packs ship at storage voltage, typically 3.2–3.4V across three cells rather than the rated 3.6V. The device may flag low battery or behave erratically before the pack has ever been charged. This is normal — charge the pack fully before first use. After a full charge cycle, resting voltage should read 3.6V or above across the pack terminals.\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\"\u003eSome charge ICs apply a reduced current limit when they detect a new or deeply discharged Ni-MH pack — this is a deliberate protection behaviour, not a fault. The first charge may terminate early or report less than full capacity. Run a full discharge down to the BMS cutoff, then charge again. Capacity typically normalises within two to three cycles as the charge IC learns the pack's internal resistance profile.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333481627738,"sku":"BWCS-CM038SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333481660506,"sku":"BWCS-CM038SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333481693274,"sku":"BWCS-CM038SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CM038SL-1.webp?v=1778212807","url":"https:\/\/batteryweb.com\/products\/custom-battery-packs-replacement-battery-36v-1000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}