{"product_id":"dfi-nb6600-replacement-battery-12v-3800mah-ni-mh","title":"DFI NB6600 Replacement Battery 12V 3800mAh DR36","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDFI NB6600 \/ NB6620 — 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 the DFI NB6600 and NB6620 notebook computers. It replaces OEM part numbers DR36 and DR36S. The battery restores portable operation to either notebook when the original cell has degraded or failed to hold charge.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNB6600 and NB6620 compatibility:\u003c\/strong\u003e\n    Both notebooks share the same battery bay dimensions and connector pinout. The DR36 and DR36S part numbers are interchangeable across this platform. The BMS handshake and voltage rail are identical on both machines.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on compatible notebook hardware. The BMS accepted the cell without fault codes, and the charge circuit held steady through the full Ni-MH topping cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle conditioning on Ni-MH notebooks:\u003c\/strong\u003e\n    After installing, run one full discharge to the hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that typically appears after a cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health after installing the DR36\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe NB6600 BIOS reads EEPROM data from the previous cell and compares it against the new cell's reported state. A fresh cell has no accumulated cycle data, so the BIOS flags it as degraded or unknown. This is a calibration gap, not a fault with the replacement cell. Run one full discharge-to-hibernate then a full uninterrupted charge to 100% — the BIOS learn cycle will overwrite the stale EEPROM values and clear the warning.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNotebook shuts down abruptly while the OS gauge still shows 20–30% remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on this platform estimates remaining capacity based on voltage curves calibrated to the original cell. A new Ni-MH cell has a slightly different voltage profile, so the gauge loses accuracy in the lower charge range. Under full CPU and display load, the actual cell voltage drops below the cutoff threshold before the gauge reaches 0%. Two to three full calibration cycles — full discharge to hibernate, full charge to 100% — tighten the fuel gauge IC's tracking against the new cell's actual voltage curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410856837210,"sku":"BWCS-DR36HB-1","price":89.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410856869978,"sku":"BWCS-DR36HB-2","price":105.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410856902746,"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\/dfi-nb6600-replacement-battery-12v-3800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}