{"product_id":"hytera-pt580h-replacement-battery-74v-2000mah-li-ion","title":"Hytera PT580H Replacement Battery BL2019 7.4V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHytera PT580H \/ PT580H Plus — 7.4V Li-ion Replacement Battery (BL2019 \/ BL2505)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2000mAh Li-ion battery for the Hytera PT580H and PT580H Plus portable two-way radios. It replaces OEM part numbers BL2019 and BL2505. Both radios share the same battery bay geometry, voltage rail, and BMS handshake protocol, so one pack covers both models.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePT580H and PT580H Plus compatibility:\u003c\/strong\u003e\n    Both models run the same 7.4V power rail and use an identical connector and latch mechanism. The BMS negotiation sequence is the same across the series, so there is no firmware or hardware difference that affects pack acceptance.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge, idle, and full transmit loads on the PT580H. The BMS held stable through PTT-triggered current spikes and did not trigger overcurrent lockout under normal push-to-talk use.\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 battery and wipe the gold contact strip with a dry cloth before reseating. The PT580H platform requires a clean contact cycle to complete the BMS handshake before the dock will begin charging.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the PT580H cuts out mid-transmission on a new BL2019\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a new pack ships from storage, its cell voltage typically sits between 3.6V and 3.7V per cell — below the PT580H's transmit-load threshold. At full PTT output, the radio draws a sharp current spike that the BMS reads as an unsafe discharge event and trips the overcurrent protection. This is not a faulty pack. A full charge cycle before the first field use brings both cells up to 4.2V each, which gives the BMS enough headroom to absorb the transmit spike without cutting out.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after fitting a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PT580H uses a voltage-threshold bar indicator — it reads instantaneous cell voltage, not a capacity estimate. A new pack at storage voltage will display one or two bars even though the cells are not depleted. This is expected behaviour. Charge the pack fully before reading the bar display; at 8.4V resting voltage the indicator will show the correct full-charge bar count.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426325692506,"sku":"BWCS-HTC806TW-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426325725274,"sku":"BWCS-HTC806TW-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426325758042,"sku":"BWCS-HTC806TW-3","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HTC806TW-1.webp?v=1779930634","url":"https:\/\/batteryweb.com\/products\/hytera-pt580h-replacement-battery-74v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}