{"product_id":"mackie-freeplay-personal-pa-replacement-battery-74v-6800mah-li-ion","title":"Mackie FreePlay 7.4V Replacement Battery 6800mAh 2043880-00","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMackie FreePlay Personal PA — 7.4V Li-ion Replacement Battery (2043880-00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 6800mAh Li-ion replacement battery for the Mackie FreePlay Personal PA. It replaces OEM part number 2043880-00. The FreePlay is a portable PA system used for presentations, outdoor events, and small venues where mains power isn't available.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFreePlay PA compatibility:\u003c\/strong\u003e\n    The FreePlay platform runs a single 7.4V Li-ion cell pack. This battery matches the original voltage rail, physical connector, and BMS communication protocol required for the onboard charge management to accept the pack and report state-of-charge correctly.\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 FreePlay platform. The BMS handshake completed on first insertion, charge acceptance was normal, and the unit reported accurate state-of-charge through the full discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle charging on the FreePlay:\u003c\/strong\u003e\n    Insert this battery and charge it fully in the FreePlay before using the PA at an event. The FreePlay's onboard BMS needs a complete charge cycle to calibrate its fuel gauge — without it, the indicator can drop unexpectedly under audio load.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the FreePlay shuts down mid-event under audio load\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe FreePlay draws sustained current to power both the Class D amplifier and the wireless receiver simultaneously. If the cell voltage sags below the BMS cutoff threshold under that combined draw, the unit shuts off as a protection event — not a fault. An aged or partially discharged cell hits that threshold sooner because its internal resistance is higher. A fresh, fully charged 7.4V pack at 6800mAh has the headroom to hold voltage steady through peaks in audio output.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFreePlay showing full charge but cutting off after short use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the battery arrives at storage voltage — typically around 3.8V per cell — rather than full charge. The fuel gauge on the FreePlay reads this as full because it hasn't logged a calibration cycle on the new pack. The fix is straightforward: run a full charge to 8.4V before the first use. After one complete charge-discharge cycle, the BMS recalibrates and the state-of-charge display tracks accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428122853466,"sku":"BWCS-MFP880XL-1","price":66.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428122886234,"sku":"BWCS-MFP880XL-2","price":78.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428122919002,"sku":"BWCS-MFP880XL-3","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MFP880XL-1.webp?v=1779934164","url":"https:\/\/batteryweb.com\/products\/mackie-freeplay-personal-pa-replacement-battery-74v-6800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}