{"product_id":"milwaukee-v28-replacement-battery-28v-4000mah-li-ion","title":"Milwaukee 28V M28 Replacement Battery 4000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMilwaukee V28 Series — 28V Li-ion Replacement Battery (48-11-2830)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 28V Li-ion replacement battery rated at 4000mAh (112Wh) for the Milwaukee V28 cordless tool platform. It fits the M28, M28B, M28BX, and MC28 battery housings, along with tools like the 0726-22 and 0780-20. Voltage and connector match the original Milwaukee V28 specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eV28 platform compatibility:\u003c\/strong\u003e\n    All tools in Milwaukee's 28V line share the same battery rail voltage, slide-in connector, and BMS communication protocol. That includes V28 drills, circular saws, reciprocating saws, and impact drivers — the battery seats and handshakes identically across the platform.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through a Milwaukee V28 drill and circular saw under load. The BMS handled motor-start inrush without false overcurrent trips and held the voltage rail steady through sustained cutting cycles. Cell balance across the pack stayed within spec at end of discharge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eV28 motor break-in tip:\u003c\/strong\u003e\n    On first use, run the tool at half load for two cycles before full-torque applications. This lets the BMS log the motor's inrush current signature and calibrate overcurrent thresholds before you hit it with a core drill or sustained saw 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 V28 motor-start inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eMilwaukee V28 motors — especially circular saws and hammer drills — pull a sharp current spike the instant the trigger engages. A new or storage-aged battery pack can read that spike as an overcurrent fault and shut the BMS down before the motor reaches speed. The BMS protection threshold is factory-set conservatively; a pack that hasn't been cycled recently hasn't profiled the motor load yet. Running two light-load cycles lets the BMS establish a current baseline and reduces nuisance trips on full-trigger engagement.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger showing red fault light on a new V28 pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the Milwaukee charger blinks red and refuses to start a charge cycle, the pack's resting voltage has likely dropped below the charger's acceptance threshold — typically under 20V on a 28V pack after extended storage. The charger interprets this as a damaged or deeply discharged cell and blocks the charge for safety. To recover it, use a charger with a conditioning or recovery mode, or briefly connect the pack to a known-good V28 charger and watch for a slow pulse rather than a solid fault light. Once the voltage climbs above the acceptance floor — around 22V — a standard charge cycle will proceed normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416024547418,"sku":"BWCS-MKV280PX-1","price":126.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416024580186,"sku":"BWCS-MKV280PX-2","price":148.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416024612954,"sku":"BWCS-MKV280PX-3","price":165.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MKV280PX-1.webp?v=1779759484","url":"https:\/\/batteryweb.com\/products\/milwaukee-v28-replacement-battery-28v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}