{"product_id":"franklin-wireless-rg1100-replacement-battery-38v-3800mah-li-polymer","title":"Franklin Wireless RG1100 Compatible Battery 3.8V 3800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFranklin Wireless RG1100 — 3.8V Li-Polymer Replacement Battery (941-925552-011)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 3800mAh Li-Polymer battery replaces the OEM cell in the Franklin Wireless RG1100 mobile hotspot. It fits the RG1100 directly, matching the original's connector, dimensions, and BMS communication protocol. Capacity is rated at 14.44Wh and sourced to match the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRG1100 platform fit:\u003c\/strong\u003e\n    The RG1100 runs a combined cellular modem and multi-device WiFi radio off a single 3.8V Li-Polymer cell. The BMS on this replacement matches that voltage rail and the charge termination thresholds the device firmware expects — no error flags on boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and load on the RG1100 with eight simultaneous connected clients. The BMS held steady through the combined modem and WiFi draw, with no unexpected cutoffs at peak load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eVentilation during extended sessions:\u003c\/strong\u003e\n    Keep the RG1100 on a hard, flat surface when running continuous sessions — not in a bag or pocket. The cellular radio ramps to maximum transmit power when connected devices are at range limits, and trapped heat around the battery accelerates cell stress significantly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the RG1100 drops connected devices mid-session under full client load\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the RG1100 is serving multiple clients simultaneously, the modem and WiFi radio pull current at the same time. If the battery cell has degraded, its internal resistance climbs — and the combined draw causes a brief voltage sag below the BMS cutoff threshold. The hotspot interprets this as an undervoltage event and resets the radio stack, which kicks connected clients. A fresh cell with lower internal resistance handles the combined draw without the sag.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRG1100 showing solid charge indicator but not booting after sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge at roughly 2–3% per month. A unit left in a drawer for several months can drop below the RG1100's minimum boot voltage — typically around 3.0V per cell — even if the indicator LED briefly flashes when plugged in. The charger may show activity, but the firmware won't initialise below that threshold. Charge the unit continuously for at least 30 minutes before attempting to power on, then check that the cell is reading above 3.5V before boot.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377787666522,"sku":"BWCS-FWG110SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377787699290,"sku":"BWCS-FWG110SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377787732058,"sku":"BWCS-FWG110SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FWG110SL-1.webp?v=1778772243","url":"https:\/\/batteryweb.com\/products\/franklin-wireless-rg1100-replacement-battery-38v-3800mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}