{"product_id":"motorola-sx800-replacement-battery-36v-700mah-ni-mh","title":"Motorola SX800 KEBT-086-B Replacement Battery 3.6V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMotorola SX800 \/ FV700 Series — 3.6V Ni-MH Replacement Battery (KEBT-086-B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 700mAh Ni-MH replacement battery for the Motorola SX800, SX800R, SX500R, FV700, and compatible models. It uses OEM part number KEBT-086-B and slots directly into the battery compartment on these compact two-way radios. Swap it in when your original pack stops holding a charge or fails to register in the charger dock.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSX800 \/ FV700 platform fit:\u003c\/strong\u003e\n    These models share the same 3.6V Ni-MH cell format, connector pinout, and battery compartment geometry. One pack covers the full SX and FV700 lineup without 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 charge and discharge on the SX800 platform. The BMS accepted the handshake correctly, and the radio's bar indicator responded as expected at each voltage threshold across the discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion into the dock:\u003c\/strong\u003e\n    If the dock shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Motorola charger dock requires a clean contact cycle to accept the new BMS handshake before charging begins.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SX800 cuts out mid-transmission on a freshly inserted pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003ePressing PTT draws a sharp current spike as the radio switches from standby to transmit. A Ni-MH cell at storage voltage — typically around 1.1–1.2V per cell — has higher internal impedance than a fully charged cell. That impedance causes a momentary voltage drop that the radio's BMS reads as an undervoltage condition, cutting the transmission before it completes. A single full charge cycle before field use brings cell impedance down and eliminates this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected on a new KEBT-086-B\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNew Ni-MH cells ship at partial state of charge — roughly 40–60% — so the SX800's voltage-threshold bar indicator will read one or two bars low on first insertion. This is not a capacity fault. Run the pack through one complete charge in the dock until the LED goes green, then power on the radio. The bar indicator should reflect a full charge at that point, starting from the 4.2–4.3V fully charged pack voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426370093146,"sku":"BWCS-MTV300TW-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426370125914,"sku":"BWCS-MTV300TW-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426370158682,"sku":"BWCS-MTV300TW-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MTV300TW-1.webp?v=1779931027","url":"https:\/\/batteryweb.com\/products\/motorola-sx800-replacement-battery-36v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}