{"product_id":"zeadio-zs-b1-dc-replacement-battery-37v-1100mah-li-ion","title":"Zeadio ZS-B1 DC Compatible Battery 3.7V 1100mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eZeadio ZS-B1 DC — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1100mAh Li-ion battery for the Zeadio ZS-B1 DC two-way radio. It fits directly into the ZS-B1 DC battery bay and restores transmit and receive power when the original cell no longer holds a usable charge. No OEM part number is published for this pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eZS-B1 DC platform fit:\u003c\/strong\u003e\n    The ZS-B1 DC runs a 3.7V single-cell architecture with a slim 5.70mm profile. This pack matches that voltage rail and physical envelope — 53.00 × 33.90 × 5.70mm — so the back cover seats and latches without forcing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through transmit loads and confirmed the BMS holds the output rail steady through PTT press bursts. The protection circuit trips cleanly at overcurrent and resets without requiring a charger reconnect.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion on the ZS-B1 DC dock:\u003c\/strong\u003e\n    New cells ship at storage voltage, typically around 3.6–3.65V. If the dock LED blinks fault on first insertion, wipe the contact strip with a dry cloth and reseat the pack firmly. The charger needs a clean contact cycle to read the BMS before accepting the cell for charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eZS-B1 DC bar indicator sitting one bar low on a fresh pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ZS-B1 DC reads battery level from voltage thresholds, not a fuel gauge chip. A new cell at storage voltage — around 3.6V — sits at or just below the threshold for the top bar. The radio correctly reports what it sees. Run one full charge cycle and the cell will reach 4.2V, which pushes the indicator to full. This is not a fault with the pack.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRadio cuts out mid-transmission on the new ZS-B1 DC battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eTransmit current on a handheld radio spikes sharply the moment PTT is pressed. If the BMS sees that spike as an overcurrent event — particularly on a cold cell or one that hasn't completed a first charge — it can trip the protection circuit and kill the output. The fix is to complete a full charge before the first use, bringing the cell to 4.2V, which lowers internal resistance enough that the transmit surge stays within BMS limits. If cutouts continue after a full charge, check that the battery contacts are clean and seated flush.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426292564058,"sku":"BWCS-TMR446TW-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426292596826,"sku":"BWCS-TMR446TW-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426292629594,"sku":"BWCS-TMR446TW-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TMR446TW-1.webp?v=1779930602","url":"https:\/\/batteryweb.com\/products\/zeadio-zs-b1-dc-replacement-battery-37v-1100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}