{"product_id":"black-decker-bdcdmt120-replacement-battery-20v-5000mah-li-ion","title":"Black \u0026 Decker LB20 20V Replacement Battery 5000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlack \u0026amp; Decker BDCDMT120 Series — 20V Li-ion 5000mAh Replacement Battery (LB20 \/ LBXR20)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 20V Li-ion battery rated at 5000mAh (100Wh), replacing Black \u0026amp; Decker OEM part numbers LB20, LBX20, LBXR20, and related variants. It fits the BDCDMT120 matrix drill and over 94 other 20V MAX platform tools including the CHH2220 hammer drill and LCS120 chainsaw. Slide it onto any compatible 20V MAX port and the BMS handshake initialises immediately.\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 lineup shares a standardised slide-rail connector, voltage rail, and BMS communication protocol across drills, saws, and outdoor tools — so one battery services the full range without adapter changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack on a BDCDMT120 matrix drill through repeated motor-start inrush events. The BMS held the overcurrent threshold steady across all cycles and cell temperature stayed within spec under continuous load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMotor inrush break-in:\u003c\/strong\u003e\n    On first use, run the drill at half load for two full charge-discharge cycles before applying maximum torque. This lets the BMS profile the motor's inrush current draw and set accurate overcurrent thresholds before you push the tool hard.\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 inrush spike with the BDCDMT120\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe BDCDMT120's matrix attachment system means motor load varies sharply depending on which head is fitted. A hammer or circular saw attachment draws a far higher inrush current on trigger pull than a standard drill head. If the BMS hasn't profiled that load yet, its overcurrent protection can trip at the moment of peak draw — cutting power instantly. Running two break-in cycles at half load allows the BMS to widen its threshold window before you switch to high-draw attachments.\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 slowly during storage and shipping. If cell voltage drops below approximately 2.5V per cell, the charger's acceptance circuit won't recognise the pack and signals a fault with a red blink. The fix is to briefly connect a known-good charged pack to the same charger to confirm the charger is functional, then attempt a slow re-initialisation: insert the flat pack, wait 30 seconds, and remove it — repeat three times. This nudges the charger's pre-charge circuit to engage. If cell voltage has recovered above 2.8V per cell, the charger will accept the pack and begin a normal charge cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416039489626,"sku":"BWCS-BPL120PH-1","price":52.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416039522394,"sku":"BWCS-BPL120PH-2","price":60.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416039555162,"sku":"BWCS-BPL120PH-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BPL120PH-1.webp?v=1779759664","url":"https:\/\/batteryweb.com\/products\/black-decker-bdcdmt120-replacement-battery-20v-5000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}