{"product_id":"kenwood-th-d7a-replacement-battery-72v-1100mah-ni-mh","title":"Kenwood PB-39 TH-D7A Replacement Battery 7.2V 1100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKenwood TH-D7A \/ TH-G71A Series — 7.2V Ni-MH Replacement Battery (PB-39)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V 1100mAh Ni-MH replacement battery for the Kenwood TH-D7A and TH-G71A dual-band handheld transceivers. It also fits the TH-D7E and TH-G71E variants. OEM part numbers replaced: PB-39, PB-39H, and PB-38.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTH-D7 and TH-G71 platform fit:\u003c\/strong\u003e\n    Both the TH-D7 and TH-G71 series share the same battery bay dimensions, contact layout, and 7.2V rail. One pack covers both lines 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 full charge and transmit-load cycles on a TH-D7A. The BMS held steady through repeated PTT bursts and did not trigger overcurrent cutoff under sustained RF output.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion into the charging dock:\u003c\/strong\u003e\n    If the dock shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Kenwood dock requires a clean contact cycle to complete 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 TH-D7A cuts out mid-transmission on a fresh pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells ship at storage voltage — typically 1.1–1.2V per cell, well below the 1.2V nominal operating point. On the TH-D7A, the transmit current spike at PTT can pull a partially charged pack below the BMS low-voltage threshold before a single exchange is complete. This is not a faulty battery. Run the pack through one full charge cycle before the first transmission test. After a full charge, the cells deliver their rated 1100mAh and handle the TX current draw without cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TH-D7A reads pack voltage against fixed thresholds to display the bar indicator — it does not measure capacity directly. A new Ni-MH cell fresh off storage sits at a lower resting voltage than a fully charged cell, so the radio reports one bar short. This is normal behaviour, not a capacity fault. Charge the pack fully and let it rest for 15 minutes before reading the indicator — the display should step up to reflect a resting voltage above 7.8V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426341748826,"sku":"BWCS-KNB390TW-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426341781594,"sku":"BWCS-KNB390TW-2","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426341814362,"sku":"BWCS-KNB390TW-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KNB390TW-1.webp?v=1779930783","url":"https:\/\/batteryweb.com\/products\/kenwood-th-d7a-replacement-battery-72v-1100mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}