MULS A1577 iPad Pro 12.9" (1st Gen) Replacement Battery

MULS A1577 is a direct replacement battery for the Apple iPad Pro 12.9" (1st generation) that restores runtime with a 10307mAh capacity and includes installation tools.

The MULS A1577 battery is built to fit the original iPad Pro 12.9" 1st Gen models (A1584, A1652) and compatible Apple model numbers. It offers a high-capacity 3.77V, 38.8Wh cell pack designed to bring a worn device back to reliable daily use. The package ships with a basic repair toolkit so you can swap the battery yourself or hand it to a technician; safety protections and quality control measures are integrated to reduce electrical faults and premature failure.

How will this battery affect my iPad Pro's battery life and performance?

Swapping a tired battery for this MULS A1577 pack will generally return run times closer to the original factory performance. The 10307mAh capacity increases usable hours for video, browsing, and productivity compared to an aged cell, and the supplied protective circuitry helps stabilize charging.

• 10307mAh capacity for extended daily use.
• Rated 3.77V / 38.8Wh to match original power specifications.
• Built-in protections against short circuit, overcharge, and overheating.

Is this battery compatible with my specific iPad Pro model?

Compatibility centers on the iPad Pro 12.9" first-generation and the common Apple model IDs A1584 and A1652. MULS also lists many platform-specific SKU numbers that this battery fits; check the model printed on your device or in Settings › General › About to confirm a match before purchasing.

• Fits iPad Pro 12.9" (1st Gen) — official A1584 and A1652 models.
• Matches a range of Apple SKU codes used across retail variants.
• Refer to your iPad’s model number to verify compatibility before installation.

What safety and quality features are included with the MULS battery?

MULS emphasizes safety by using certified cells and control circuitry to reduce risk during charging and daily use. The battery is new (not refurbished) and assembled with components intended to last through multiple charging cycles, and the product is packaged to limit transport damage.

• Industry quality checks and certification for new battery cells.
• Protection circuits for short-circuit, overheat, and overcharge conditions.
• Premium materials and circuit boards to support durability and longevity.

What comes in the box and how can I get support if needed?

The kit includes the MULS A1577 battery plus a basic repair tool set to help with removal and installation. MULS provides customer support and a 12-month after-sale service window; reach out by email for troubleshooting, replacement queries, or guidance during installation.

• Battery pack matched to iPad Pro 12.9" (1st Gen) specifications.
• Repair tools for opening and replacing the internal battery.
• 24/7 email support and a 12-month after-sale service promise.

Who is this for: The MULS A1577 replacement battery is aimed at iPad Pro 12.9" (1st generation) owners whose devices show reduced runtime, unexpected shutdowns, or significant battery wear. It's a practical choice for DIY technicians, repair shops, and owners seeking a cost-effective alternative to manufacturer service—provided the buyer confirms model compatibility and is comfortable with internal battery replacement or can access professional installation.