{"product_id":"novatel-wireless-sa-2100-replacement-battery-37v-2600mah-li-ion","title":"Novatel Wireless SA 2100 Compatible Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNovatel Wireless SA 2100 \/ Tasman T1114 — 3.7V Li-ion Replacement Battery (40115130-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2600mAh Li-ion battery replaces part number 40115130-001 in the Novatel Wireless SA 2100 and Tasman T1114 mobile hotspot devices. It fits the SA-2100 and the 4G Router variants that share the same battery bay and connector. Capacity figures come directly from the product specification — 9.62Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSA 2100 and Tasman T1114 platform fit:\u003c\/strong\u003e\n    Both devices run the same 3.7V battery rail and use an identical connector and BMS handshake protocol, which is why one part number covers the full range. Swapping between variants requires no adapter or firmware change.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell under a combined modem-plus-WiFi load simulating four active client connections. The BMS held steady at 3.7V nominal through the discharge curve and tripped at the correct low-voltage cutoff without false shutdowns.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCellular signal and battery load:\u003c\/strong\u003e\n    In poor signal areas the SA 2100's modem boosts transmit power to maintain a 4G link, pulling significantly more current than in strong-signal conditions. Position the hotspot near a window or external wall to reduce radio output power and slow the draw on this cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SA 2100 drops all connected devices mid-session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the SA 2100 is running at maximum client connections, the combined current draw from the cellular modem and the WiFi radio can cause a voltage sag on an aged or partially charged cell. The BMS interprets that sag as a low-voltage event and cuts output to protect the cell, which the device reads as a power failure — dropping all sessions instantly. A fresh cell with lower internal resistance maintains voltage under that combined load without triggering the cutoff. If drop-outs happen on a new battery, check that the hotspot is not enclosed in a bag or case where heat is trapping around the unit.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSA 2100 shows battery icon but will not boot after sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 1–3% per month in storage. If the SA 2100 has been shelved for several months, the cell can fall below the minimum boot voltage — typically around 3.0V — even though a small residual charge remains. At that level the BMS blocks output entirely, so the device appears completely dead. Connect the hotspot to a charger and leave it for at least 20–30 minutes before attempting to power on; the charger circuit will trickle current into the cell until it recovers above the 3.0V BMS enable threshold and the device can start its boot sequence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377834229850,"sku":"BWCS-MFT114SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377834262618,"sku":"BWCS-MFT114SL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377834295386,"sku":"BWCS-MFT114SL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MFT114SL-1.webp?v=1778773879","url":"https:\/\/batteryweb.com\/products\/novatel-wireless-sa-2100-replacement-battery-37v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}