{"product_id":"kimo-6-inch-cordless-chainsaw-replacement-battery-20v-4000mah-li-ion","title":"Kimo K16811 20V Cordless Chainsaw Replacement Battery 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKimo 6 Inch Cordless Chainsaw — 20V Li-ion Replacement Battery (K16811)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 20V 4000mAh (80Wh) Li-ion battery pack for the Kimo 6 Inch Cordless Chainsaw and compatible models including QM-6001, QM-T20, and QM-3061B. It slots into the same dock as the original and communicates with the same BMS handshake. Voltage and connector match the K16811 specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQM-series and K16811 platform fit:\u003c\/strong\u003e\n    These models share the same 20V slide-in rail, contact pin layout, and BMS communication protocol — which is why one battery pack covers the full platform without adapters or rewiring.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through repeated motor-start cycles on a K16811 unit. The BMS held the inrush spike at trigger pull without tripping, and cell voltage stayed above the 18V sag threshold under sustained cutting load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBreak-in on first use:\u003c\/strong\u003e\n    Run two cutting cycles at half bar load before going full throttle into dense wood. This lets the BMS measure motor inrush current and set overcurrent thresholds before it sees a maximum torque pull.\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 in the K16811\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the chainsaw triggers, the motor draws a spike of current — often three to five times the running draw — in the first 80–120 milliseconds. A BMS that hasn't profiled this inrush pattern may read it as a fault and cut power instantly. On a new or storage-recovered pack, the BMS protection thresholds reset to conservative defaults. Two break-in cycles at partial load teach the BMS the motor's actual inrush signature before it locks thresholds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger blinking red on a new pack that's been sitting in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If cell voltage drops below roughly 2.5V per cell, most chargers refuse to begin a full charge cycle and signal the refusal with a red blink pattern. This is a charger acceptance threshold, not a dead pack. Connect the battery to the charger and leave it for 10–15 minutes — many chargers run a trickle pre-charge to bring cells back above 3.0V before switching to normal CC\/CV mode. If the red blink clears and the charger advances to a steady charge, the pack has recovered past the acceptance floor.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416011833434,"sku":"BWCS-KMK811PH-1","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416011866202,"sku":"BWCS-KMK811PH-2","price":123.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416011898970,"sku":"BWCS-KMK811PH-3","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KMK811PH-1.webp?v=1779759485","url":"https:\/\/batteryweb.com\/products\/kimo-6-inch-cordless-chainsaw-replacement-battery-20v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}