{"product_id":"meister-craft-mas144-replacement-battery-144v-5000mah-li-ion","title":"Meister Craft MAS144 14.4V Replacement Battery 5000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMeister Craft MAS144 Series — 14.4V Li-ion Replacement Battery (5451170)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V Li-ion battery rated at 5000mAh (72Wh), built to replace OEM part 5451170. It fits the Meister Craft MAS144, MAS144VL, and compatible platform tools listed under model 5450880. Slot it into your existing charger — same voltage rail, same connector footprint.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMAS144 and MAS144VL platform fit:\u003c\/strong\u003e\n    Both models share the same 14.4V battery bay, connector pinout, and BMS handshake protocol. One battery covers both tools — no adapters, no wiring changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through full charge-discharge cycles on a 14.4V drill platform. The BMS handled motor-start inrush current without false overcurrent trips and held the voltage rail steady under sustained load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle load conditioning:\u003c\/strong\u003e\n    On first use, run the tool at half load for two cycles before full-torque applications. This lets the BMS profile your motor's inrush current draw and set overcurrent thresholds accurately before you push maximum demand.\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 in the MAS144\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you pull the trigger hard from a dead stop, the motor draws a spike of current that can be three to five times the running load. A freshly installed or storage-depleted pack has elevated internal resistance, which amplifies the voltage drop at that spike. The BMS reads this as an overcurrent event and trips the protection circuit before the motor ever reaches speed. Two half-load conditioning cycles lower internal resistance and let the BMS calibrate its thresholds to your motor's actual start profile.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger blinking red and refusing to accept the new pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion chargers have a minimum acceptance voltage — typically around 10V for a 14.4V pack. If the battery sat discharged for an extended period, the cells may have self-discharged below that threshold and the charger will blink red rather than begin a charge cycle. This is a BMS lockout, not a dead battery. Apply a brief trickle charge using a compatible Li-ion recovery charger at 0.1C until the pack reads above 12V, then transfer it to your standard charger to complete the full cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416031232090,"sku":"BWCS-MAS144PH-1","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416031264858,"sku":"BWCS-MAS144PH-2","price":123.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416031297626,"sku":"BWCS-MAS144PH-3","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MAS144PH-1.webp?v=1779759628","url":"https:\/\/batteryweb.com\/products\/meister-craft-mas144-replacement-battery-144v-5000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}