MULS 90Wh BTY-M55 Laptop Battery for MSI Alpha 15 A3DDK A4DEK B5EX 17 B5EEK

With the launch of its dedicated laptop battery line, MULS emerged as a professional brand focused on addressing the growing demand for reliable, high-performance replacement laptop batteries worldwide. We have expanded our product range over the years to include premium tool batteries for robotic vacuums while extending our global market reach, all with an unwavering core focus on precision compatibility, strict quality control and long-lasting power performance. The rising global demand for durable replacement batteries that restore device performance has fueled MULSs steady growth and built a trusted reputation among users across key markets worldwide.
MULS is dedicated to crafting top-tier replacement batteries, covering a wide range of laptop models and robotic vacuum tools alike. Our batteries are all engineered with high-quality materials and integrated multiple safety protections, effectively solving common issues like short battery life, sudden shutdowns and aging power cells for your devices. Every MULS battery is precisely calibrated to match the original devices power needs, delivering a seamless, hassle-free user experience.
Power your laptops lasting performance, and keep your robotic vacuum running strongwith MULS!
Specification

Voltage: 15.4V
Capacity: 90Wh 5845mAh
Condition: Brand new from manufacture, Grade A cell
Replacement for Part Number

BTY-M55 925QA055H 4ICP5/63/133
Compatible Laptop Models:

Replacement for MSI Pulse 15 B13VFK B13VGK,
Replacement for MSI Alpha 15 A3DDK A4DEK B5EEK B5EX Series,
Replacement for MSI Sword 15 A11UG Series,
Replacement for MSI Crosshair 15 R6E B12UGZ,
Replacement for MSI Crosshair 15 17 B12UGZ B12UGZO B12UGSZ B12UGSZO,
Replacement for MSI Alpha 17 B5EEK Series,
Replacement for MSI Pulse GL66 GL76 12UGK 12UGSZOK 12UGSZK 12UGOK,
Replacement for MSI Katana GF66 11UG Series.
Note: Please open the back cover of your laptop to check the original battery size and capacity before placing an order. Please scroll down to the list to purchase.
Laptop Battery Usage & Inspection Guidelines
What should I be mindful of when charging the battery?
1. Use a compatible charger: Always use a charger that matches your laptop's original specifications (same voltage and current parameters).
2. Charging environment requirements: When charging, place your laptop in a well-ventilated, cool area away from direct sunlight and heat sources. Keep it distant from flammable or explosive items (such as paper or alcohol) to prevent battery overheating, swelling, or fire.
3. Charging rhythm management: For new batteries, there is no need to deliberately charge for 12 hours during the first charge. Charge to 100% and then continue charging for 30 minutes. For subsequent charges, unplug the charger promptly after reaching full capacity to avoid prolonged charging while the battery is fully charged.
Note: If the battery exhibits severe heating, unusual odors, bulging, or other abnormalities during charging, immediately unplug the charger, shut down the laptop, and stop using the battery. Do not continue charging or using the battery.
How to extend your laptop battery's lifespan during daily use?
1. Maintain optimal charge levels: Keep battery levels between 20% and 80% during regular use. Avoid prolonged deep discharges (below 10%) or storing at full charge for extended periods. For long-term storage, charge to around 50% and recharge monthly.
2. Minimize Heavy Loads: Avoid running resource-intensive software (e.g., video editing, gaming) or connecting multiple external devices for extended periods while on battery power. This reduces high-power discharge and minimizes wear.
3. Calibrate the battery periodically: Every 1-2 months, drain the battery until the device shuts down automatically (recommended to start around 10% charge to avoid over-discharge), then fully charge it