{"product_id":"tetevis-rt50-replacement-battery-74v-2050mah-li-ion","title":"Tetevis RT50 Compatible Battery 7.4V 2050mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTetevis RT50 — 7.4V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 2050mAh Li-ion battery fits the Tetevis RT50 two-way radio. It replaces the original pack when capacity has dropped or the cell has failed outright. Voltage and form factor match the RT50 battery bay directly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRT50 platform fit:\u003c\/strong\u003e\n    The RT50 runs a 7.4V two-cell Li-ion architecture. This pack matches that voltage rail and the physical connector orientation, so the BMS handshake initiates correctly on first insertion without requiring any adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through PTT-heavy transmit loads and monitored BMS response at the current spikes typical of radio transmit events. The protection circuit held within expected thresholds and did not trip under sustained keying sequences.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion contact check:\u003c\/strong\u003e\n    If the charger shows a fault LED on the first dock, remove the pack and wipe the contact pads with a dry cloth before reseating. New cells ship at storage voltage, and a dirty or oxidised contact can prevent the dock from reading the pack correctly on that initial cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the RT50 cuts out mid-transmission on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you key the RT50, transmit current spikes sharply — often two to three times the standby draw. A new pack sitting at storage voltage (typically around 3.6–3.7V per cell) has less headroom before the BMS interprets that spike as an overcurrent event. The protection circuit trips and the radio drops out mid-transmission. This is not a faulty pack. Run two or three full charge cycles and the cells stabilise at their working voltage, giving the BMS the headroom it needs to pass the transmit surge without cutting off.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after fitting this pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RT50 reads battery level from resting voltage thresholds — it has no chip tracking charge history. A new cell at storage voltage sits below the top threshold the radio expects from a fully charged pack, so the indicator shows one bar short even though nothing is wrong. Charge the pack fully before drawing conclusions. Once the cell reaches its rated 7.4V resting voltage after a complete charge cycle, the bar indicator will read correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426274410586,"sku":"BWCS-TMR380TW-1","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426274443354,"sku":"BWCS-TMR380TW-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426274476122,"sku":"BWCS-TMR380TW-3","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TMR380TW-1.webp?v=1779930523","url":"https:\/\/batteryweb.com\/products\/tetevis-rt50-replacement-battery-74v-2050mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}