{"product_id":"milwaukee-6550-20-replacement-battery-24v-1500mah-ni-mh","title":"Milwaukee 48-11-0100 Cordless Screwdriver Compatible Battery 2.4V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMilwaukee 6550-20 Series — 2.4V Ni-MH Replacement Battery (48-11-0100)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 1500mAh Ni-MH replacement battery for the Milwaukee 6550-20 cordless screwdriver. It also fits the JAN-38, JAN-39, JAN-46, and compatible models sharing the same voltage rail and connector. Capacity is sourced from product data at 1500mAh (3.6Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e6550-20 and JAN-series compatibility:\u003c\/strong\u003e\n    These models share the same 2.4V single-cell Ni-MH architecture, identical connector footprint, and the same charge acceptance profile. The BMS handshake on each expects the same temperature coefficient response during charging — this pack meets that spec.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge and discharge cycles on the 6550-20 platform. The BMS accepted the pack without fault codes, held stable voltage under repeated trigger-pull loads, and recovered cleanly from a partial discharge state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eNi-MH cycling on a compact screwdriver:\u003c\/strong\u003e\n    Ni-MH cells in this voltage class degrade faster from shallow cycling than deep cycling. Run the pack down to tool slowdown before recharging — not after every short use. This keeps cell capacity calibrated and slows voltage depression.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVoltage depression in Ni-MH packs from repeated partial discharge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells at 2.4V are particularly vulnerable to voltage depression — a condition where the pack delivers less usable voltage than its nominal rating under load. This happens when cells are repeatedly charged before they reach full discharge. In a compact screwdriver like the 6550-20, the symptom appears as sluggish torque even on a freshly charged pack. Running two or three full discharge-recharge cycles on a new or recovered pack resets the electrochemical baseline and restores usable voltage.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not recognising the pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the Milwaukee charger shows no activity or a fault indication when you seat this pack, the cell voltage has likely dropped below the charger's acceptance threshold — typically under 1.0V on a 2.4V Ni-MH pack. This happens after extended storage. Connect the pack to the charger and watch for the charge indicator within 90 seconds; some chargers require the cell to read above 0.8V per cell before initiating. If the charger won't engage, a brief manual trickle charge using a universal Ni-MH charger at 50mA for 10–15 minutes will bring the pack above the acceptance floor — then reseat it in the Milwaukee charger.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416076091482,"sku":"BWCS-MKE200PW-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416076124250,"sku":"BWCS-MKE200PW-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416076157018,"sku":"BWCS-MKE200PW-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MKE200PW-1.webp?v=1779760142","url":"https:\/\/batteryweb.com\/products\/milwaukee-6550-20-replacement-battery-24v-1500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}