10994mAh LiCoO2 Replacement Battery for iPad Pro 12.9″ 2nd Gen — A1670 / A1671 / A1821
– 10994mAh high-capacity LiCoO2 cells — exceeds OEM spec (A1744 / 10307mAh)
– 1S4P pack configuration | Nominal voltage: 3.82V
– TI-chipset BMS — overcharge, over-discharge & short-circuit protection
– Custom matte black wrap — OEM color/label options available
– Grade A pure cobalt cells | Zero B-grade or recycled material
– Compatible: iPad Pro 12.9″ 2nd Gen (A1670 / A1671 / A1821)
– Certifications: CE, RoHS, UN38.3
– Factory direct | Low MOQ accepted | Sample order supported
Product Description
The iPad Pro 12.9″ 2nd generation (released June 2017) uses a 1S4P lithium cobalt oxide pack rated at 3.82V. Apple’s OEM unit (Part No. A1744) carries a nominal capacity of approximately 10,307mAh. Our BLD-LCO-10994-IPP129G2 uses custom-spec Grade A LiCoO2 cells in the same 1S4P topology — bumping usable capacity to 10,994mAh without altering the physical footprint or connector pinout.
Verified Compatible Models:
| Apple Model No. | SKU Variant | Connectivity |
|---|---|---|
| A1670 | iPad Pro 12.9″ 2nd Gen | Wi-Fi only |
| A1671 | iPad Pro 12.9″ 2nd Gen | Wi-Fi + Cellular |
| A1821 | iPad Pro 12.9″ 2nd Gen | Wi-Fi + Cellular (CN) |
OEM Reference P/N: A1744
This battery ships with the original-style ZIF flex connector and matte black PVC wrap as standard. Custom wrap color, branding, and connector variants are available on OEM orders.
Technical Parameters
| Parameter | Specification | Notes |
|---|---|---|
| Cell Chemistry | LiCoO₂ (Lithium Cobalt Oxide) | Custom pure cobalt, Grade A |
| Pack Configuration | 1S4P | 4 cells in parallel, 1 series |
| Nominal Voltage | 3.82V | Matches OEM A1744 spec |
| Nominal Capacity | 10,994 mAh | OEM A1744: ~10,307mAh |
| Typical Energy | 42.0 Wh | 3.82V × 10,994mAh |
| Charge Cutoff Voltage | 4.35V | High-voltage LiCoO₂ spec |
| Discharge Cutoff Voltage | 2.75V | BMS hardware cutoff |
| BMS IC | Texas Instruments (TI) | OCP / OVP / UVP / SCP |
| Connector Type | ZIF Flex (Apple A1744 compatible) | Drop-in replacement |
| Cycle Life | ≥ 500 cycles @ ≥80% capacity | 0.5C charge / 1C discharge |
| Operating Temperature | -20°C to +60°C | Discharge range |
| Storage Temperature | -40°C to +70°C | At 40–60% SOC recommended |
| Wrap Color | Matte Black (standard) | Custom color on OEM orders |
| Certifications | CE, RoHS 2.0, UN38.3 | MSDS available on request |
| Compatible Models | A1670 / A1671 / A1821 | iPad Pro 12.9″ 2nd Gen (2017) |
| OEM Reference P/N | A1744 | Apple OEM part number |
Need a stable supply plan? Send your model list + quantities + destination. We’ll confirm lead time, shipping method, and compliance documents before you place the order.
Features & Advantages
✅ Grade A Pure Cobalt Cells — No Recycled Material
Every cell in this pack is fresh-production LiCoO₂ with a rated capacity tolerance of ±2%. We do not blend refurbished or B-grade cells into any pack. Cell discharge curve matches OEM behavior, ensuring accurate battery percentage readout on iPadOS.
✅ TI BMS — 4-Layer Protection Circuit
The pack integrates a Texas Instruments IC-based BMS covering overcharge (>4.35V cutoff), over-discharge (<2.75V cutoff), short-circuit, and over-temperature protection. No field failures due to BMS logic drift — confirmed over 18 months of channel data from EU repair depot customers.
✅ 10,994mAh — 6.7% Capacity Gain Over OEM
Higher usable energy in the same physical envelope. End-users report 20–40 minutes of additional screen-on time versus a like-for-like OEM-spec replacement. A concrete upsell point for repair shops marketing premium replacements.
✅ Precision Fit — Zero Modification Required
Pack dimensions, adhesive strip layout, and ZIF connector geometry are reverse-engineered from Apple A1744 samples. No trimming or adapter cables needed. Average install time for a trained technician: under 12 minutes.
✅ OEM-Ready Customization
Matte black wrap is standard. We support custom wrap color, printed brand label, barcode sticker, and private-label packaging on orders of 200 units or above. NDA available before sample sharing.
✅ Certifications — Ready for EU & US Market Entry
CE, RoHS 2.0, and UN38.3 (air freight compliance) certificates ship with every order. MSDS documentation included. No additional lab testing required for standard EU/UK import clearance.
Packing & Delivery
Lead Time & Shipping
In-stock items: Ship within 3 days
For standard replacement models with available inventory.Mass production orders: Ship within 7 days
For regular models under confirmed specifications and packaging requirements.Customized orders: Ship within 15 days
For custom cell configuration, size, wire/connector, PCB/BMS, labeling, or packaging.
Note: Final dispatch time depends on total quantity, model complexity, packaging requirements, and shipping compliance documents. We will confirm the estimated shipping date (ETD) after order confirmation.
Air freight (urgent, smaller volume)
Sea freight (cost-effective for bulk)
Rail / Truck (subject to destination)
Express channels
Documents available: UN38.3 / MSDS / Transport Test Report (if applicable)
Compliant packaging and carton labeling can be arranged based on the chosen shipping method.
EXW / FOB / CIF / DDP available
One-Stop Sourcing for the Complete Apple Ecosystem
-Streamline your supply chain. Consolidate your MacBook, iPad, iPhone, and Watch battery orders into a single shipment to reduce logistics costs and maximize your wholesale margins.
Beyond OEM Standards: Engineered for the Entire Apple Ecosystem
With 10+ years in lithium battery production, 1,600+ standard & custom models, and shipments to 40+ countries, Balder Power build replacement batteries with consistent performance—ready for wholesale and OEM supply.
True High-Capacity Cells
Adopts 100% Pure Cobalt (LiCoO2) chemistry across all lines. Delivers 20%-30% higher energy density than standard OEM batteries, extending daily usage for iPhones, iPads, and Watches alike.
Premium TI IC Solution
Powered by original Texas Instruments (TI) Gas Gauge ICs. Ensures accurate battery percentage display, prevents sudden shutdowns, and supports Zero Pop-up errors (via BMS transplant) for newer iPhone models.
800+ Cycle Life & 100% Healthability
Engineered for longevity with 800+ charging cycles (vs. industry standard 500). Guaranteed 0-Cycle brand-new cells showing 100% Battery Health immediately after installation on all devices.
All-Weather Reliability
Specialized electrolyte formula ensures stability from -10°C to 50°C. Prevents "winter shutdowns" for iPhones/Watches and maintains stable voltage output for iPads in extreme climates.
Anti-Swelling Safety Tech
Uses premium aluminum-plastic film packaging and optimized electrolytes to suppress gas generation. Critical for protecting large iPad screens and delicate Watch displays from pressure damage and swelling.
1:1 Precision Original Fit
From laser-cut Watch cells to precision-molded iPad batteries, we guarantee Zero Thickness Deviation. Ensures perfect connector alignment and a flush screen fit, eliminating "screen lift" or pressure spots.
Factory-Direct OEM Services
One-stop supply chain for all Apple series. We support Mixed Low MOQ orders (e.g., iPhone + Watch + iPad combo), custom private labeling, and retail packaging for global distributors.
Industry-Leading Warranty
Strict QC protocols keep our RMA rate below 0.1%. Every battery—whether for a tiny Watch or a large iPad Pro—is backed by our comprehensive 13-Month Warranty for your peace of mind.
Factory Experience & Quality Control (Built for Bulk Supply)
We understand that B2B buyers care most about consistency and delivery stability. As your dedicated Apple ecosystem battery manufacturer in China, our production workflow implements a unified quality standard across all device categories—from high-precision Apple Watch cells to high-capacity iPad packs.
We perform rigorous 72-hour aging tests on every battery series to ensure reliable performance for wholesale replacement markets and OEM projects. Whether you are sourcing a mixed order of 50 units or a container of 5,000, our ISO-certified process guarantees that every single battery is a Zero Cycle unit ready for immediate installation.
Our lithium battery certifications
FAQ
Q1: Is this battery a direct drop-in replacement for Apple A1744? Yes. The connector pinout, ZIF flex geometry, and physical dimensions are identical to A1744. No adapters, soldering, or case modification needed. Average installation time for a trained technician is under 12 minutes.
Q2: Why is the capacity 10,994mAh instead of the OEM spec 10,307mAh? We use a custom cell formulation with a slightly higher active material loading per cell. The 1S4P pack configuration is unchanged. The higher capacity results in approximately 6.7% more energy without altering the physical pack size. iPadOS reads and reports the capacity accurately via the BMS fuel gauge IC.
Q3: What is the minimum order quantity (MOQ)? There is no strict MOQ for standard stock orders — single-unit samples are accepted. For OEM orders requiring custom wrap, private label, or connector variants, the minimum is 200 units per SKU. Bulk pricing tiers start at 50 units.
Q4: What certifications are included, and are they sufficient for EU import? Each shipment comes with CE Declaration of Conformity, RoHS 2.0 compliance statement, and UN38.3 test summary. These cover standard EU/UK market entry for replacement parts. MSDS is included for all air freight shipments. If your market requires additional regional certifications, contact us before ordering.
Q5: What is the lead time for bulk orders? Standard stock (matte black, no custom label): 3–5 business days for orders up to 500 units. Custom OEM orders (color wrap, brand label, custom packaging): 12–18 business days after sample approval. Sea freight consolidation available for orders above 500 units.
Q6: What warranty and quality guarantee do you provide? 12-month warranty against manufacturing defects from shipment date. Defective rate commitment: <0.3% on bulk orders. Failed units are replaced or credited — no return shipping required for orders above 100 units. Each batch undergoes capacity grading, internal resistance testing, and OCV sorting before shipment.
