{"product_id":"apple-a2836-replacement-battery-384v-8150mah-li-polymer","title":"Apple iPad Pro 12.9\" A2836 Replacement Battery 3.84V 8150mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eApple iPad Pro 11-inch (2024) \u0026amp; 12.9-inch A2836 Series — 3.84V Li-Polymer Replacement Battery (0098S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.84V, 8150mAh (31.3Wh) Li-Polymer battery for the Apple iPad Pro 11-inch (2024) and related models A2836, A2837, and A3006. It replaces the original cell when capacity has dropped, charge cycles are exhausted, or the tablet no longer holds a usable charge. Fit models share the same connector pinout, cell dimensions, and BMS communication protocol.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA2836 \/ A2837 \/ A3006 platform fit:\u003c\/strong\u003e\n    These three model numbers use the same physical cell size, the same four-pin flex connector, and the same SMBus handshake to the charge IC. Swapping between them does not require firmware changes or connector adapters.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We seated this cell in an A2836 chassis and cycled it through the charge IC. The BMS accepted charge negotiation cleanly, cell voltage rose at the expected C-rate, and the charge IC transitioned to trickle at 4.35V without fault flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    After installation, run the tablet down to automatic shutoff, then charge uninterrupted to 100% without using the device. This single full cycle lets the fuel gauge IC recalibrate against the new cell and clears the inaccurate percentage readings that almost always appear immediately after a battery swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eiPad Pro shutting down at 15–25% remaining after battery replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC still holds voltage-to-capacity mapping data from the old, degraded cell. The new cell has a steeper voltage curve in the lower charge range, so the IC reads a voltage cliff as a shutdown threshold before the cell is actually empty. The tablet cuts out at what it thinks is a safe floor — but that floor is wrong. One full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% rewrites the IC's internal map. After that cycle, the shutdown behaviour resolves and the remaining percentage tracks accurately down to the real low-voltage cutoff near 3.0V per cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charging not available after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eUSB-PD fast charging requires a completed charge handshake between the charger, the iPad's charge IC, and the new cell. On a freshly installed cell, the charge IC may default to a conservative 5W profile until it has run one full accepted charge cycle. This is a protection behaviour, not a fault. Plug in Apple's 20W or higher USB-C adapter and allow one full charge to 100% without interruption. After that cycle completes, the charge IC re-enables the higher-wattage PD profile.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43425816477786,"sku":"BWCS-IPA836SL-1","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43425816510554,"sku":"BWCS-IPA836SL-2","price":123.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43425816543322,"sku":"BWCS-IPA836SL-3","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IPA836SL-1.webp?v=1779929837","url":"https:\/\/batteryweb.com\/products\/apple-a2836-replacement-battery-384v-8150mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}