{"product_id":"tait-tp8100-replacement-battery-72v-2200mah-ni-mh","title":"Tait TP8100 Two-Way Radio Replacement Battery 7.2V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTait TP8100 Series — 7.2V Ni-MH Replacement Battery (TT35L1-D)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.2V, 2200mAh Ni-MH battery replaces the original pack in the Tait TP8100, TP8110, TP8115, and TP8120 handheld transceivers. It matches the OEM voltage rail and connector used across the TP8100 platform. Capacity is rated at 15.84Wh per the manufacturer spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTP8100 platform fit:\u003c\/strong\u003e\n    The TP8100, TP8110, TP8115, and TP8120 all share the same battery bay geometry, contact pin layout, and 7.2V supply rail. One pack services all four models without adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through transmit-cycle load testing on the TP8100 platform. The BMS handled the PTT current spike without triggering overcurrent lockout, and the cells held voltage within spec across sustained RF output.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-insertion contact check:\u003c\/strong\u003e\n    If the Tait 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 dock requires a clean contact cycle to initiate the 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 TP8100 drops to reduced TX power mid-shift on a fresh pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells ship at partial storage voltage, not full charge. When the radio draws peak transmit current from an incompletely charged pack, the cell voltage sags below the radio's RF output threshold. The TP8100 firmware responds by stepping down transmit power rather than cutting off entirely. A full charge cycle before first use eliminates this — the dock green light confirms the pack has reached capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after fitting a new TT35L1-D\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TP8100 reads battery level using voltage thresholds, not a fuel gauge chip. A new Ni-MH pack at storage voltage sits below the top threshold, so the radio displays one bar short even with a new pack installed. This is not a fault. Seat the pack in the dock and complete a full charge cycle — once cell voltage rises above the top threshold, the indicator will show the correct bar count.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426312519770,"sku":"BWCS-TAP810TW-1","price":52.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426312552538,"sku":"BWCS-TAP810TW-2","price":61.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426312585306,"sku":"BWCS-TAP810TW-3","price":68.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TAP810TW-1.webp?v=1779930680","url":"https:\/\/batteryweb.com\/products\/tait-tp8100-replacement-battery-72v-2200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}