ASUNCELL 9NJM1 99Wh Laptop Battery for Dell Alienware

The ASUNCELL 9NJM1 is a 3-cell, 11.4V, 99Wh replacement battery designed to restore runtime for compatible Dell Alienware and P-series notebooks.

Built from Grade A lithium-ion cells and engineered as a drop-in replacement for several Dell part numbers, this ASUNCELL battery aims to match factory fit and safety while offering up to 500 charge cycles. It includes tools for straightforward installation, multiple protections against electrical faults, and certifications to meet international standards. Below you’ll find clear answers to common buyer questions about compatibility, installation, performance, and safety.

Will this battery work with my Dell Alienware or P-series laptop?

Yes — the ASUNCELL 9NJM1 is specifically shaped and wired for a wide range of Dell models. It substitutes several OEM part numbers so it can replace the original battery in matching machines without modification.

• Compatible families: Alienware 15 R3/R4, Alienware 17 R4/R5, Dell P31E and P69F series, and ALW17C models.
• Replaces OEM codes including 9NJM1, MG2YH, 0MG2YH, 01D82, HF250 and similar numbers.
• Verify your laptop’s service tag or original battery part number to confirm fit before ordering.

How long will this replacement battery run and last?

This pack has a rated capacity of 99Wh which gives real-world runtime depending on your workload and power settings. ASUNCELL designs these packs for cycle life, with cell chemistry tuned to retain useful capacity across many recharges.

• Rated capacity: 99Wh (11.4V, 3-cell configuration).
• Designed for up to about 500 full charge/discharge cycles under normal conditions.
• Actual runtime varies by CPU/GPU load, screen brightness, and active peripherals.

Is installation difficult and what accessories come with the battery?

Installation is intended to be user-friendly and the package contains helpful tools to remove the old pack and fit the new one safely. Basic hand tools and careful handling are all that’s needed for most compatible Dell notebooks.

• Included tools: a small screwdriver and a pry tool (crowbar) to ease removal and installation.
• Step-by-step: power down, unplug, remove service screws, swap the battery, and secure screws back.
• If unsure, consult your laptop’s service manual or seek a technician to avoid damage.

What safety features and warranty does this ASUNCELL battery include?

The battery integrates multiple protections to reduce risk during charging and use, and ASUNCELL backs the product with a limited warranty. Certification marks indicate compliance with common regulatory standards for safety and environmental handling.

• Protection: safeguards against overcharge, over-discharge, over-current, and short circuits.
• Certifications: UL, CE, RoHS and FCC compliance as part of quality and environmental checks.
• Warranty: 1-year limited warranty and customer support contact for issues or defects.

Who is this for? If you own a compatible Dell Alienware 15/17-series or P31E/P69F-series notebook and need a dependable replacement to regain portable performance, this ASUNCELL 9NJM1 battery is an affordable option. It’s aimed at gamers, creators, and professionals who require a battery that fits OEM specifications, includes installation tools, and offers enhanced cycle life and safety certifications. If your laptop’s part number matches one of the listed replacements, this pack provides a straightforward way to restore battery life without buying a full new system.