{"product_id":"iwatsu-dc-ps8-replacement-battery-37v-1050mah-li-ion","title":"Iwatsu DC-PS8 Compatible Battery 3.7V 1050mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIWATSU DC-PS8 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1050mAh Li-ion battery replaces the original pack in the IWATSU DC-PS8 two-way radio. It fits the DC-PS8 directly, matching the original voltage rail and physical form factor. No OEM part number is published for this pack — the DC-PS8 is the sole confirmed fit model.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDC-PS8 platform fit:\u003c\/strong\u003e\n    The DC-PS8 uses a compact 3.7V single-cell architecture common to slim handheld business radios. This battery matches that voltage rail and the original connector orientation, so the BMS handshake with the charger dock proceeds the same way as the factory pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through transmit loads and monitored the BMS cutoff behaviour. The protection circuit held within the expected voltage window under sustained PTT draws, and the cell recovered cleanly after each discharge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion into the charger dock:\u003c\/strong\u003e\n    If the dock shows a fault LED on first insertion, remove the battery, wipe the contact pads with a dry cloth, and reseat firmly. The DC-PS8 charger requires a clean contact cycle to recognise the new BMS before it starts 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 DC-PS8 cuts out mid-transmission on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-ion cell ships at storage voltage — typically 3.6–3.7V — not a full charge. When PTT is pressed, transmit current spikes sharply. If the cell hasn't been fully charged first, that spike can pull terminal voltage below the BMS cutoff threshold, dropping the radio mid-transmission. This is not a faulty battery. Charge the pack fully before the first use cycle and the cutout behaviour stops.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after fitting this battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DC-PS8 uses simple voltage-threshold bar indicators — each bar corresponds to a voltage band. A new pack at storage voltage sits at the lower end of the display range, so the radio shows one fewer bar even though the cell is not depleted. This is not a capacity fault. Run the battery through one full charge cycle and the indicator will reflect the correct charge level at approximately 4.1–4.2V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426367668314,"sku":"BWCS-FNB82TW-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426367701082,"sku":"BWCS-FNB82TW-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426367733850,"sku":"BWCS-FNB82TW-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FNB82TW-1.webp?v=1779930808","url":"https:\/\/batteryweb.com\/products\/iwatsu-dc-ps8-replacement-battery-37v-1050mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}