{"product_id":"koehler-lighthawk-led-replacement-battery-74v-5200mah-li-ion","title":"Koehler Lighthawk LED 7.4V Replacement Battery 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKoehler Lighthawk LED Series — 7.4V Li-ion Replacement Battery (9B-1962-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 5200mAh Li-ion replacement for the Koehler Lighthawk LED and Lighthawk Vision LED flashlights. It fits a broad range of Koehler torch models including the 07712 and 07732. The OEM part number is 9B-1962-1.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLighthawk platform compatibility:\u003c\/strong\u003e\n    The Lighthawk LED and Vision LED share a common 7.4V dual-cell architecture with identical connector pinout and BMS handshake protocol. That shared platform is why one battery covers all models in this line.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery on Lighthawk-platform torches and confirmed the BMS negotiates correctly across turbo, high, and low driver modes without false low-voltage cutoffs at normal operating temperatures.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMulti-cell replacement timing:\u003c\/strong\u003e\n    This pack contains two Li-ion cells in series. If your light uses more than one of these packs, replace all packs at the same time from the same production batch. Mixing a fresh pack with a partially degraded one puts unequal load on the weaker pack under high-current turbo draw, accelerating cell stress in the older unit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTurbo mode cutting out long before the battery shows low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eTurbo mode on Lighthawk-platform torches can pull 5–10 times the current of standard mode. As the battery ages and internal resistance rises, voltage sags under that load and the driver's brownout threshold triggers — stepping the light down before the state-of-charge indicator registers a problem. This is the driver protecting the LED array, not a gauge error. A fresh 5200mAh pack with lower internal resistance sustains the voltage rail long enough for turbo to run full cycles.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFlashlight cycling through modes on its own near end of charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eMode-cycling near the bottom of a charge cycle happens when pack voltage drops close to the driver's minimum input threshold. The driver briefly loses regulation, resets, and restarts in its default mode — repeating until you manually switch to low. This is not a firmware fault. It is the driver protecting itself from undervoltage. When it starts cycling, switch to low mode immediately and charge the pack; the BMS should accept charge once resting voltage is above 6.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377515921498,"sku":"BWCS-KLS196FT-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377515954266,"sku":"BWCS-KLS196FT-2","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377515987034,"sku":"BWCS-KLS196FT-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KLS196FT-1.webp?v=1778767205","url":"https:\/\/batteryweb.com\/products\/koehler-lighthawk-led-replacement-battery-74v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}