{"product_id":"deltafox-grizzly-80001146-replacement-battery-18v-4000mah-li-ion","title":"DeltaFox Grizzly 80001146 18V Replacement Battery 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDeltaFox Grizzly 80001146 \/ 80001147 \/ 2020 \/ 2040 — 18V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 18V 4000mAh (72Wh) lithium-ion battery for the DeltaFox Grizzly 80001146, 80001147, 2020, and 2040 cordless power tools. All four models share the same 18V rail and battery interface, so one pack covers the full range. Capacity is sourced from product data — 4000mAh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGrizzly 80001146 \/ 80001147 \/ 2020 \/ 2040 compatibility:\u003c\/strong\u003e\n    These four models run on the same 18V battery platform with a shared connector and BMS handshake protocol. The same pack slots directly into all four without any adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through repeated motor-start inrush loads on the bench. The BMS cleared overcurrent events cleanly and resumed normal discharge without manual reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMotor break-in on first use:\u003c\/strong\u003e\n    Run the tool at half load for two cycles before pushing maximum torque. This lets the BMS log the motor's inrush current signature and set overcurrent thresholds accurately before heavy-duty use begins.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff on motor-start inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eCordless tools draw a sharp current spike the instant the trigger is pulled — often two to three times the steady-state load. On a fresh or recently stored pack, the BMS may read this spike as a fault and cut the output before the motor reaches running speed. This is a protection trip, not a dead battery. Remove the pack, wait 10 seconds, and reinsert before pulling the trigger again. If trips continue, the BMS threshold may need recalibration — run two light-load cycles first to let it re-profile the motor draw.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTool bogs under sustained load after a few minutes of use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the Grizzly loses torque or slows noticeably after several minutes of cutting or drilling, the cause is usually thermal-related voltage sag — cell temperature rises inside the enclosed housing and internal resistance climbs. The tool's output drops as the pack voltage sags below the motor's hold-up threshold. Pull the pack and let it cool for five minutes before resuming. If the problem persists, check that the battery contacts in the tool slot are clean and making full contact — corroded or recessed contacts increase rail resistance and worsen sag.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416013766746,"sku":"BWCS-WRX540PH-1","price":87.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416013799514,"sku":"BWCS-WRX540PH-2","price":102.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416013832282,"sku":"BWCS-WRX540PH-3","price":113.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WRX540PH-1.webp?v=1779759486","url":"https:\/\/batteryweb.com\/products\/deltafox-grizzly-80001146-replacement-battery-18v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}