{"product_id":"koehler-lighthawk-led-replacement-battery-74v-7800mah-li-ion","title":"Koehler Lighthawk LED 7.4V Replacement Battery 9B-1962-1","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKoehler Lighthawk LED \/ Lighthawk Vision LED — 7.4V Li-ion Replacement Battery (9B-1962-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 7800mAh (57.72Wh) lithium-ion battery for the Koehler Lighthawk LED and Lighthawk Vision LED flashlights. It replaces OEM part number 9B-1962-1. Compatible models include the 07712, 07732, and 14 additional Lighthawk variants sharing the same voltage rail and cell format.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLighthawk LED platform fit:\u003c\/strong\u003e\n    The Lighthawk LED and Vision LED share the same 7.4V two-cell pack format, connector pinout, and BMS handshake protocol. That consistency across the 07712, 07732, and extended model range is why one cell format covers the full lineup.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through full charge and discharge cycles on the Lighthawk LED driver. The BMS held cell balancing across both cells throughout, and the protection circuit tripped correctly at the low-voltage cutoff threshold — no false shutoffs during normal draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMulti-cell replacement discipline:\u003c\/strong\u003e\n    This pack houses two cells. If you are swapping one pack in a dual-battery Lighthawk configuration, replace both packs at the same time from the same production batch. Pairing a new pack with a partially degraded one lets the weaker pack drain first, which forces it into repeated deep discharge under high-current turbo draw — that accelerates cell failure in the older pack.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLighthawk LED dimming before the battery indicator shows low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Lighthawk's LED driver uses brownout protection to step output down before the battery voltage actually hits the low-battery threshold shown on any indicator. When cell voltage drops under sustained turbo draw, the driver reduces current to the LED to protect itself — the light dims even though the indicator has not triggered. This is normal driver behaviour, not a battery defect. If you see it, switch to a lower output mode. The driver will hold stable output for longer at reduced current draw.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTurbo mode runtime significantly shorter than standard mode — what is happening\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eTurbo mode on the Lighthawk LED draws five to ten times the current of standard mode. At that draw rate, the 7800mAh capacity depletes proportionally faster, and cell voltage sags under load — which can also trigger the driver's brownout step-down earlier. This is not a faulty battery; it is the physics of high-current draw on any lithium-ion cell. To extend time between charges, use turbo in short bursts and drop to a lower mode for sustained illumination. Check cell voltage after a long turbo session — a healthy pack should recover above 7.0V within a few minutes of rest.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377516281946,"sku":"BWCS-KLS196FX-1","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377516314714,"sku":"BWCS-KLS196FX-2","price":52.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377516347482,"sku":"BWCS-KLS196FX-3","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KLS196FX-1.webp?v=1778767205","url":"https:\/\/batteryweb.com\/products\/koehler-lighthawk-led-replacement-battery-74v-7800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}