{"product_id":"d-link-dwr-131-replacement-battery-37v-1800mah-li-ion","title":"D-Link DWR-131 Replacement Battery 3.7V 1800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eD-Link DWR-131 \/ DIR-506L SharePort Go — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1800mAh Li-ion battery fits the D-Link DWR-131 mobile hotspot and the DIR-506L SharePort Go portable router. It restores power to devices that have lost charge capacity or will no longer hold a charge. Capacity is taken from product data: 1800mAh (6.66Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDWR-131, DIR-506L, and 5-BT000002 compatibility:\u003c\/strong\u003e\n    These models share a common 3.7V single-cell Li-ion platform with the same physical footprint (52.76 × 35.35 × 11.16mm) and connector pinout — the BMS handshake and charge termination logic are identical across the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a DWR-131 unit with four clients connected. The BMS held cutoff at the correct low-voltage threshold and did not trip spuriously under combined modem and Wi-Fi radio draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eVentilation during extended sessions:\u003c\/strong\u003e\n    Keep the hotspot on a hard, flat surface — never in a pocket or bag — during long sessions. When client devices are far from the hotspot, the cellular radio runs at full output power, generating heat that accelerates cell wear over time.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the DWR-131 drops all connected clients mid-session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DWR-131 runs two radios simultaneously — the cellular modem and the 2.4GHz Wi-Fi access point. At maximum client load, the combined current draw causes voltage sag on an aged or partially depleted cell. When the cell voltage dips below the BMS low-voltage threshold momentarily, the BMS cuts output to protect the cell, which the device firmware reads as a hard power event and reboots. A fresh cell at full capacity sustains the current draw without the voltage sag that triggers the cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDWR-131 won't power on after sitting unused for weeks\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 2–3% per month, and the DWR-131 draws a small standby current even when switched off. After extended storage, the cell can drop below the minimum boot voltage — typically around 3.0V — and the BMS locks output entirely. Connect the device to a 5V USB charger for at least 30 minutes before attempting to power on; this allows the charger to trickle current past the BMS lockout threshold and recover the cell to a bootable voltage of approximately 3.4V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377890066522,"sku":"BWCS-EX6210RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377890099290,"sku":"BWCS-EX6210RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377890132058,"sku":"BWCS-EX6210RC-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EX6210RC-1.webp?v=1778773918","url":"https:\/\/batteryweb.com\/products\/d-link-dwr-131-replacement-battery-37v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}