{"product_id":"tiger-gt-series-replacement-battery-12v-3800mah-ni-mh","title":"Tiger DR36 Replacement Battery 12V 3800mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTiger GT Series \u0026amp; Designote Series — 12V Ni-MH Replacement Battery (DR36)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 3800mAh Ni-MH replacement battery for Tiger GT Series and Designote Series laptops. It replaces OEM part numbers DR36 and DR36S. Capacity is rated at 45.6Wh and matches the original cell specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGT Series and Designote Series compatibility:\u003c\/strong\u003e\n    Both notebook lines draw from the same 12V battery rail and share the DR36 connector and BMS handshake protocol. A single cell covers both platforms without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge, discharge, and BMS communication checks. The BMS completed its handshake on first contact, reported correct voltage, and accepted a full charge cycle without interruption.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle discharge after install:\u003c\/strong\u003e\n    After fitting this cell, run the laptop on battery until it reaches hibernate-cutoff — do not interrupt it. Then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every Ni-MH cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the GT Series BIOS reports poor battery health after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BIOS stores battery health data in EEPROM tied to the old cell's charge history. When a new cell installs, that stored data no longer matches actual capacity, so the BIOS flags the battery as degraded. This is not a fault with the replacement cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite its learn-cycle data against the new cell. After one or two full cycles, the health indicator should return to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% shown on the fuel gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC calibrates its percentage readout against the old cell's known voltage curve. A fresh Ni-MH cell has a slightly different discharge curve, so the IC miscalculates the remaining charge and triggers shutdown early. The cell still has capacity — the gauge simply hasn't mapped it yet. Run two or three full discharge-to-hibernate and full recharge cycles to recalibrate the fuel gauge IC. After calibration, the shutdown point should align with the actual voltage floor at approximately 10.8V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410856345690,"sku":"BWCS-DR36HB-1","price":89.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410856378458,"sku":"BWCS-DR36HB-2","price":105.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410856411226,"sku":"BWCS-DR36HB-3","price":118.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DR36HB-big.webp?v=1779581376","url":"https:\/\/batteryweb.com\/products\/tiger-gt-series-replacement-battery-12v-3800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}