{"product_id":"franklin-wireless-mhs800l-replacement-battery-38v-2100mah-li-ion","title":"Franklin Wireless MHS800L Replacement Battery 3.8V 2100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFranklin Wireless MHS800L — 3.8V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V 2100mAh Li-ion battery for the Franklin Wireless MHS800L mobile hotspot. It slots into the MHS800L's battery bay and restores full charging capacity to the unit. The hotspot creates a portable 4G LTE WiFi network for travelers and remote workers who need connectivity away from fixed internet access.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMHS800L fit:\u003c\/strong\u003e\n    The MHS800L runs its cellular modem and WiFi radio off a single 3.8V Li-ion cell. This battery matches that voltage rail and the physical dimensions of the bay — 58.55 × 50.71 × 6.86mm — so the cover seats correctly and the contacts align.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell under combined cellular modem and WiFi load — four connected client devices, mid-range signal. The BMS held stable voltage through the draw cycle and tripped protection at the correct low-voltage threshold without cutting out prematurely.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eVentilation during long sessions:\u003c\/strong\u003e\n    Keep the MHS800L on a hard, flat surface during extended use — not in a pocket or bag. When connected devices are far from the hotspot, the cellular radio runs at maximum transmit power, and trapping that heat 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\"\u003eHotspot disconnecting users mid-session on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MHS800L draws from two simultaneous loads — the cellular modem and the WiFi radio. At maximum connected devices, that combined draw can pull voltage down faster than a degraded or low-capacity cell can recover. The BMS interprets the sag as a low-voltage event and cuts output to protect the cell, which drops all connected clients. A fresh 2100mAh cell with a healthy internal resistance handles these combined spikes without triggering the cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMHS800L won't power on after sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage — typically 1–2% per month at room temperature. If the MHS800L sat unused for several months, the battery may have dropped below the minimum boot voltage, which is around 3.0V on this cell chemistry. The BMS blocks charging from that state on some chargers to prevent an unsafe charge into a deeply depleted cell. Connect the hotspot to a wall adapter and leave it for 15–30 minutes before attempting to power on — a USB port may not supply enough current to recover the cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377843667034,"sku":"BWCS-VMH700SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377843699802,"sku":"BWCS-VMH700SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377843732570,"sku":"BWCS-VMH700SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VMH700SL-1.webp?v=1778773895","url":"https:\/\/batteryweb.com\/products\/franklin-wireless-mhs800l-replacement-battery-38v-2100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}