{"product_id":"radon-302-replacement-battery-74v-2600mah-li-ion","title":"Radon 302 Two-Way Radio Replacement Battery 7.4V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRadon 302 \/ 353 \/ 354 \/ 361 Series — 7.4V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V Li-ion pack delivers 2600mAh (19.24Wh) for the Radon 302, 353, 354, and 361 two-way radios. It replaces the original battery in compact Radon portables used across field and professional communication setups. Same voltage rail, same form factor, same BMS handshake requirements as the factory pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e302 \/ 353 \/ 354 \/ 361 platform fit:\u003c\/strong\u003e\n    These four models share the same battery bay dimensions, 7.4V supply rail, and contact pin layout. One pack covers the full range without modification or adapter.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge acceptance, PTT transmit load cycling, and BMS cutoff verification. The protection circuit responded correctly to overcurrent events during sustained transmit bursts.\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 the first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Radon dock runs a BMS handshake on contact — a film of oxidation or dust on the contacts is enough to break that cycle before charging starts.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Radon 302 cuts out mid-transmission on a new battery\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 a full 4.2V. When you key the PTT on a radio at storage voltage, the transmit current spike can pull cell voltage below the BMS protection threshold for a split second. The BMS interprets that as an overcurrent event and cuts the pack. This is not a fault in the battery — it is the protection circuit working as intended on a cell that has not yet been fully charged. Charge the pack completely before first field use and the issue does not recur.\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\"\u003eRadon portables use voltage-threshold bar indicators — each bar represents a voltage window, not a percentage from a fuel gauge chip. A new pack at storage voltage sits in the lower threshold window and displays fewer bars even though capacity is intact. This is a voltage reading, not a capacity problem. Put the pack through one full charge cycle in the dock until the charge LED goes green, then power on the radio — the bar indicator will reflect the correct resting voltage of approximately 8.3–8.4V across the pack.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426311929946,"sku":"BWCS-TAP815TW-1","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426311962714,"sku":"BWCS-TAP815TW-2","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426311995482,"sku":"BWCS-TAP815TW-3","price":71.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TAP815TW-1.webp?v=1779930681","url":"https:\/\/batteryweb.com\/products\/radon-302-replacement-battery-74v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}