{"product_id":"hytera-tc-880gm-replacement-battery-74v-2800mah-li-ion","title":"Hytera BL2404 TC-880GM Replacement Battery 7.4V 2800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHytera TC-880GM \/ TC-890GM — 7.4V Li-ion Replacement Battery (BL2404)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V 2800mAh Li-ion replacement for the Hytera BL2404 battery pack. It fits the TC-880GM and TC-890GM portable two-way radios. Capacity is rated at 2800mAh (20.72Wh) — use the original charger dock and existing belt clip hardware.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTC-880GM and TC-890GM platform fit:\u003c\/strong\u003e\n    Both models run the same 7.4V power rail, share the BL2404 connector footprint, and use the same BMS handshake protocol with Hytera charger docks — so one pack covers both radios without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through transmit and receive loads on the TC-880GM platform. The BMS held voltage across simulated PTT bursts and returned correct charge-acceptance signals to the dock on every test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-insertion contact check:\u003c\/strong\u003e\n    If the charger dock shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Hytera dock requires a clean contact cycle to recognise the new BMS 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 TC-880GM cuts out mid-transmission on a new BL2404\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-ion cell ships at storage voltage — typically 3.6–3.7V per cell, not full charge. When you key the PTT on a storage-voltage pack, the transmit current spike can pull cell voltage below the BMS overcurrent threshold instantly. The BMS trips and the radio cuts out, which looks like a faulty battery but is actually the protection circuit doing its job. Charge the pack fully to 8.4V before the first use and the cutout stops.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after a full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TC-880GM uses voltage-threshold bar indicators — each bar corresponds to a voltage band, not a percentage from a fuel gauge chip. A new pack sometimes reads one bar short because the cells haven't settled after the first charge cycle; resting voltage can sit slightly below the top threshold for up to an hour after the charger goes green. Let the pack rest off charge for 30–60 minutes, then reinsert — the bar display should step up to match the actual resting voltage near 8.2–8.4V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426191048794,"sku":"BWCS-HYC880TW-1","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426191081562,"sku":"BWCS-HYC880TW-2","price":76.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426191114330,"sku":"BWCS-HYC880TW-3","price":85.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HYC880TW-1.webp?v=1779930436","url":"https:\/\/batteryweb.com\/products\/hytera-tc-880gm-replacement-battery-74v-2800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}