{"product_id":"dell-latitude-2100-replacement-battery-111v-4400mah-li-ion","title":"Dell Latitude 2100 11.1V Replacement Battery 00R271","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDell Latitude 2100 \/ 2110 \/ 2120 — 11.1V Li-ion Replacement Battery (00R271)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 4400mAh (48.84Wh) Li-ion battery replaces the original cell in the Dell Latitude 2100, 2110, and 2120 netbooks. It fits the same connector and BMS handshake as the OEM pack. Cross-references include 312-0142, F079N, G038N, and over two dozen Dell part numbers for this platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLatitude 2100 series fit:\u003c\/strong\u003e\n    The 2100, 2110, and 2120 share the same battery bay dimensions, 11.1V nominal rail, and SMBus BMS protocol. One cell fits all three without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a Latitude 2110 unit. The BMS initialised correctly, charge acceptance was full to 4400mAh, and the SMBus reported accurate voltage and temperature data throughout the cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap BIOS learn cycle:\u003c\/strong\u003e\n    After installing this battery, run the netbook down to the hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the false health warning that appears when the firmware reads EEPROM data left over from the old cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor after a fresh cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eDell's BIOS reads health data from the battery's EEPROM, which stores cycle count and wear flags written by the previous cell. A new cell arrives with a clean EEPROM, but the BIOS compares it against its stored baseline and flags a mismatch. This shows as \"poor health\" or a red battery icon in Dell's hardware diagnostics. Running one full discharge-to-hibernate then a full uninterrupted charge forces the BIOS to rewrite its baseline against the new cell's actual data.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLatitude 2100 shutting down unexpectedly at 20–30% charge shown\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC calibrates its remaining-capacity estimate against the old cell's voltage curve. A new Li-ion cell holds voltage flatter across its discharge range, so the gauge underestimates how close the cell is to its minimum voltage floor. Under combined CPU and display load, the cell voltage drops sharply at the true end of charge — faster than the uncalibrated gauge expects — triggering an immediate shutdown. After two to three full discharge-to-hibernate and full-recharge cycles, the gauge IC recalibrates and the cutoff tracks accurately. At that point the shutdown should shift to below 5% shown.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409821401178,"sku":"BWCS-DE2100HB-1","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409821433946,"sku":"BWCS-DE2100HB-2","price":123.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409821466714,"sku":"BWCS-DE2100HB-3","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DE2100HB-1.webp?v=1779581092","url":"https:\/\/batteryweb.com\/products\/dell-latitude-2100-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}