{"product_id":"pantech-element-p4100-replacement-battery-37v-5100mah-li-polymer","title":"Pantech Element P4100 Replacement Battery PBR-43A 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePantech Element P4100 — 3.7V Li-Polymer Replacement Battery (PBR-43A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 5100mAh lithium-polymer replacement battery for the Pantech Element P4100 tablet. It matches the OEM PBR-43A specification and fits the original battery bay without modification. Replace it when the tablet no longer holds a charge or fails to power on from a depleted state.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eElement P4100 fitment:\u003c\/strong\u003e\n    The P4100 uses a flat Li-Polymer cell with a proprietary connector and a fuel gauge IC that communicates charge state to the Android OS. This cell matches the correct physical dimensions (138.30 × 112.90 × 4.30mm), connector pinout, and voltage curve the tablet's charge controller expects.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the P4100 and confirmed the BMS handshake completes without fault codes. The charge IC accepted the cell and proceeded through standard CC\/CV phases without interruption.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation calibration cycle:\u003c\/strong\u003e\n    After fitting this battery, run the tablet down to automatic shutoff — not a forced power-off — then charge it uninterrupted to 100%. This resets the fuel gauge IC against the new cell's actual capacity curve and eliminates the inaccurate percentage readings that typically appear after a swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePantech Element P4100 shutting down at 15–25% remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated to the old, degraded cell's voltage curve. The new cell has a steeper voltage drop under combined display and WiFi load near the lower end of its charge range. The tablet's low-voltage protection trips earlier than the percentage display suggests. One full discharge-to-shutoff and uninterrupted recharge to 100% resets the calibration and pushes the actual cutoff below 10%.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping or reading incorrectly after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe P4100's fuel gauge IC stored discharge curve data from the original cell. A new cell with a different internal resistance profile causes the reported percentage to drift — often reading 30% while the tablet still has significant charge remaining, or jumping from 60% to 100% instantly on reconnect. This is not a fault with the replacement cell. Run one complete discharge cycle to automatic shutoff, then charge uninterrupted to 100% at 3.7V nominal — the gauge IC will map its reference points against the new cell and stabilise.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43425822867546,"sku":"BWCS-PTR410SL-1","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43425822900314,"sku":"BWCS-PTR410SL-2","price":65.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43425822933082,"sku":"BWCS-PTR410SL-3","price":72.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PTR410SL-1.webp?v=1779929854","url":"https:\/\/batteryweb.com\/products\/pantech-element-p4100-replacement-battery-37v-5100mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}