{"product_id":"kobalt-k18ld-26a-replacement-battery-18v-5000mah-li-ion","title":"Kobalt 18V K18LD-26A Replacement Battery 5000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKobalt K18LD-26A — 18V Li-ion Replacement Battery (616300)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 18V Li-ion replacement battery rated at 5000mAh (90Wh), built to the same voltage rail and connector spec as the original Kobalt 616300. It fits the K18LD-26A platform and is compatible across Kobalt's 18V cordless tool line, including drills, impact drivers, and saws. Swap it in the same slot as your original pack — no adapter needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK18LD-26A platform fit:\u003c\/strong\u003e\n    Kobalt's 18V tools share a common battery interface, voltage rail, and BMS handshake protocol across the K18-LBS23A family. This pack communicates on the same data line the charger and tool expect, so the fuel gauge and protection circuits function as they would with the factory unit.\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-discharge cycles on a K18LD-26A drill and circular saw, logging cell voltage balance and BMS response. Overcurrent protection tripped cleanly on simulated stall events and reset without issue.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBreak-in on first use:\u003c\/strong\u003e\n    On first use, run your tool at half load for two cycles before full-torque applications. This lets the BMS profile the motor's inrush current draw and set accurate overcurrent thresholds before you hit a stall condition or deep cut.\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\"\u003eWhen you pull the trigger on a drill or saw, the motor draws a current spike that can be three to five times the steady-state load. If the BMS hasn't profiled the tool yet, it may read that spike as a fault and cut power immediately. This is more common with a new or freshly charged pack on a high-torque tool. Running two lighter-load cycles first lets the BMS calibrate its overcurrent threshold to the actual motor signature.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger blinking red and refusing to accept the pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that have sat discharged for several weeks can drop below the charger's acceptance voltage — typically around 2.5V per cell. The charger blinks red because it won't push full current into a pack it reads as potentially compromised. Some Kobalt chargers include a recovery mode: leave the pack seated for 10–15 minutes and the charger will attempt a low-current trickle to bring cell voltage up to the acceptance threshold. If the red blink persists past 20 minutes, check individual cell voltage — any cell below 2.0V will prevent the pack from recovering.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416031854682,"sku":"BWCS-KBT183PX-1","price":114.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416031887450,"sku":"BWCS-KBT183PX-2","price":134.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416031920218,"sku":"BWCS-KBT183PX-3","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KBT183PX-1.webp?v=1779759610","url":"https:\/\/batteryweb.com\/products\/kobalt-k18ld-26a-replacement-battery-18v-5000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}