{"product_id":"motorola-gp2000-replacement-battery-75v-2500mah-li-ion","title":"Motorola GP2000 Replacement Battery PMNN4046A 7.5V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMotorola GP2000 \/ GP2100 Series — 7.5V Li-ion Replacement Battery (PMNN4046A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.5V 2500mAh Li-ion battery replaces the PMNN4046A pack in Motorola GP2000, GP2000s, GP2100, and SP66 two-way radios. It fits the same connector and BMS handshake point as the OEM unit. Capacity is drawn from product data — 2500mAh \/ 18.75Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGP2000 \/ GP2100 platform fit:\u003c\/strong\u003e\n    These models share a common 7.5V cell stack, identical connector housing, and the same BMS communication protocol — so one pack covers the full series without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through a full charge cycle and PTT transmit load on a GP2000 body. The BMS held the voltage rail steady through repeated transmit bursts and released the protection circuit cleanly at end-of-discharge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion into the charger dock:\u003c\/strong\u003e\n    If the dock shows a fault LED on first insertion, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly. The GP2000 charger platform requires a clean contact cycle to accept the new BMS handshake before charging begins.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the GP2000 cuts out mid-transmission on a new PMNN4046A\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-ion pack ships at storage voltage — typically 3.6–3.7V per cell, not full charge. When PTT is pressed, the radio draws a sharp current spike to power the RF output stage. At storage voltage, that spike can drag the cell voltage below the BMS undervoltage threshold momentarily, triggering a protection cutoff. The radio goes silent not because the battery is faulty, but because the pack hasn't been fully charged before use. A complete charge cycle before the first shift eliminates this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after fitting new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe GP2000 uses a simple voltage-threshold bar indicator — it reads battery state by measuring terminal voltage, not cell chemistry history. A new pack at storage voltage sits below the threshold for a full bar display, so the radio shows one bar even though the cell is not depleted. This is not a capacity fault. Charge the battery fully; once terminal voltage reaches approximately 8.3–8.4V, the indicator will step up to reflect the actual charge state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426358165594,"sku":"BWCS-MTP125TW-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426358198362,"sku":"BWCS-MTP125TW-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426358231130,"sku":"BWCS-MTP125TW-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MTP125TW-1.webp?v=1779930882","url":"https:\/\/batteryweb.com\/products\/motorola-gp2000-replacement-battery-75v-2500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}