{"product_id":"franklin-wireless-r910-replacement-battery-38v-3000mah-li-ion","title":"Franklin Wireless R910 Compatible Battery 3.8V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFranklin Wireless R910 — 3.8V Li-ion Replacement Battery (V515176AR)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 3000mAh Li-ion battery replaces the original V515176AR cell in the Franklin Wireless R910 mobile hotspot. The R910 runs a combined cellular modem and Wi-Fi radio stack, which draws more from the battery than most users expect. Swap this in when charge no longer holds or the unit shuts off before you're done using it.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eR910 platform compatibility:\u003c\/strong\u003e\n    The R910 uses a 3.8V nominal cell with a specific BMS handshake to manage both the LTE modem and the Wi-Fi broadcast radio. This battery matches that voltage rail and connector pinout so the device boots and reports state-of-charge correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery under a simulated multi-device load — modem active, Wi-Fi broadcasting to several connected clients. The BMS held a stable discharge curve without triggering an undervoltage cutoff during the draw peaks.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCellular signal and heat management:\u003c\/strong\u003e\n    In areas with weak signal, the R910's cellular radio pushes to maximum transmit power. Keep the hotspot on a flat, open surface during long sessions — blocking the rear vents traps heat directly against the battery and accelerates cell wear.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the R910 disconnects connected devices mid-session\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe R910 runs two radios simultaneously — the cellular modem and the Wi-Fi access point. When several devices are actively transferring data, combined draw spikes sharply. An aged or partially charged battery sags below the minimum operating voltage for the modem, which causes a momentary reset. Users see this as a Wi-Fi dropout or a full device reboot, not a low-battery warning. A fresh cell at full charge holds the voltage rail stable through those peaks.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eR910 won't power on after sitting unused for weeks\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge slowly in storage. If the R910 sat unused for a month or more, the battery may have dropped below 3.0V per cell — the threshold many BMS circuits refuse to boot from. Plug into the original charger and leave it connected for at least 30 minutes before pressing the power button. If the charge indicator light never appears, the cell has reached 2.5V or lower and the BMS may need a trickle-recovery cycle before normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377823940698,"sku":"BWCS-FWR910SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377823973466,"sku":"BWCS-FWR910SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377824006234,"sku":"BWCS-FWR910SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FWR910SL-1.webp?v=1778773879","url":"https:\/\/batteryweb.com\/products\/franklin-wireless-r910-replacement-battery-38v-3000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}