{"product_id":"dewalt-xr-li-ion-18v-replacement-battery-18v-4000mah-li-ion","title":"DeWalt DCB180 18V XR Li-Ion Replacement Battery 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDeWalt XR Li-Ion 18V — 18V Li-ion Replacement Battery (DCB180)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 18V 4000mAh Li-ion battery replaces the DCB180 and fits the full DeWalt 18V XR cordless platform — drills, impact drivers, circular saws, reciprocating saws, and sanders. It runs at 18V nominal with a 72Wh energy rating and uses the same slide-rail connector and BMS communication protocol as the original pack. Compatible across a wide range of DeWalt 18V XR tools including the DCD740, DCD780, and over 186 additional models.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eXR 18V platform fit:\u003c\/strong\u003e\n    DeWalt's 18V XR tools use a shared battery rail with a three-pin BMS handshake. Any tool in this family that reads pack temperature and state-of-charge over that data line will recognise this battery. The voltage rail, connector pitch, and latch geometry match the original DCB180 spec.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack on a DCD780 drill and a DCS391 circular saw. The BMS held the overcurrent threshold correctly on motor start, regulated cell temperature across sustained cuts, and balanced the cells within two full charge-discharge cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst two cycles on high-draw tools:\u003c\/strong\u003e\n    Run the tool at half load for the first two cycles before full-torque applications. This lets the BMS log the motor's inrush current signature and set its overcurrent trip threshold accurately — preventing nuisance cutoffs on demanding tools like circular saws and angle grinders.\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 DeWalt 18V saw or drill, the motor draws a spike of current that can be three to five times the running load. A freshly installed or storage-depleted battery has not yet profiled that inrush, so the BMS may trip the overcurrent protection and cut the tool out instantly. This is not a faulty battery — it is the protection circuit reacting to an unrecognised spike. Run two partial-load cycles first, and the BMS will calibrate its threshold to the actual motor draw on your specific tool.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger blinking red on a new or stored pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDeWalt chargers (DCB112, DCB115, DCB118) reject packs where any cell has dropped below roughly 2.5V per cell — a common result of long storage. The charger blinks red and refuses to start a charge cycle because the pack voltage sits outside its acceptance window. Some DeWalt chargers include a recovery mode: hold the battery on the charger for 30 minutes with the blinking red light showing, and the charger will attempt a slow trickle to bring cells back above the acceptance threshold. If the light stays red past 30 minutes, check each cell group with a multimeter — any cell group reading below 2.0V will not recover.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416056987738,"sku":"BWCS-DEC180PX-1","price":76.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416057020506,"sku":"BWCS-DEC180PX-2","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416057053274,"sku":"BWCS-DEC180PX-3","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DEC180PX-1.webp?v=1779759807","url":"https:\/\/batteryweb.com\/products\/dewalt-xr-li-ion-18v-replacement-battery-18v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}