{"product_id":"black-decker-bdcdmt120-replacement-battery-20v-2000mah-li-ion","title":"Black \u0026 Decker LB20 20V Replacement Battery 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlack \u0026amp; Decker BDCDMT120 \/ LCS120 Series — 20V Li-ion Replacement Battery (LB20 \/ LBXR20)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 20V Li-ion battery rated at 2000mAh (40Wh), replacing OEM part numbers LB20, LBX20, LBXR20, and related variants. It fits the BDCDMT120 compact drill\/driver, CHH2220 hammer drill, LCS120 circular saw, LDX120C drill, and 94 additional Black \u0026amp; Decker 20V MAX platform tools. The connector and BMS communication match the original pack exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e20V MAX platform fit:\u003c\/strong\u003e\n    Black \u0026amp; Decker's 20V MAX tool line shares a common slide-rail connector, BMS handshake protocol, and 5-cell Li-ion configuration. That's why one pack covers drills, saws, and oscillating tools across the range — the voltage rail and communication lines are identical across all models in this series.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack on a BDCDMT120 and an LCS120. The BMS handled motor-start inrush on the saw without tripping, held steady voltage through a full drilling cycle, and the LBXR20-compatible charger completed a full charge cycle without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use load conditioning on circular saw applications:\u003c\/strong\u003e\n    On first use with the LCS120 or similar high-draw tools, run two light cuts before pushing full-depth rip cuts. This lets the BMS log the motor's inrush current signature and calibrate its overcurrent trip threshold before sustained high-load use.\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 trigger pull with the LCS120 and CHH2220\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the LCS120 circular saw or CHH2220 hammer drill starts under load, the motor draws a spike of current — often 3–5× the running current — in the first 200–300 milliseconds. If the BMS hasn't profiled this inrush pattern, it may read it as a fault and cut power immediately. This is not a defective battery. A fresh pack pulled from storage has conservative default thresholds until it completes a full charge-discharge cycle on the actual tool. Run one light unloaded cycle first, then return to normal use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger blinking red on a new 20V pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If a pack sits long enough, cell voltage can drop below the charger's acceptance threshold — typically around 2.5V per cell, or roughly 12.5V across a 5-cell pack. The Black \u0026amp; Decker 20V charger blinks red and refuses to charge when it sees voltage below this floor. To recover the pack, some chargers have a trickle or recovery mode activated by holding the pack in place for 60–90 seconds before the main charge stage engages. If the red blink persists past 2 minutes, check each cell group with a multimeter — any cell reading below 2.0V indicates the pack needs replacement, not recovery.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416056365146,"sku":"BWCS-BPL120PX-1","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416056397914,"sku":"BWCS-BPL120PX-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416056430682,"sku":"BWCS-BPL120PX-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BPL120PX-1.webp?v=1779759807","url":"https:\/\/batteryweb.com\/products\/black-decker-bdcdmt120-replacement-battery-20v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}