The battery performance mostly depends on the internal cells. This is why our Dell XPS 15-L521x battery pack is made up of grade "A" cells, which ensure longer discharge time, longer battery life, and quicker charging.
DESIGNED FOR LONGEVITY
Please don't be excited by low-priced products from other unscrupulous traders. Their battery capacity is significantly reduced after 50 charge & discharge cycles. Our Dell XPS 15-L521x long-life battery is rigorously tested to meet or exceed OEM specs, offering over 600 charge cycles to maintain the same capacity for a long period.
HIGH QUALITY COMPONENTS
Battery can't have a stable performance with cheap components and even damage your laptop. Our Dell XPS 15-L521x battery replacement has built-in high-quality smart control chip to ensure perfect performance and compatibility.
100% TRUE CAPACITY
Don't get caught in fake capacity ads! Many companies use them to attract customers and increase profits. LaptopBatt guarantees that our Dell XPS 15-L521x battery capacity is 100% true, please rest assured to buy!
DON'T TAKE ANY RISKS
Safety is vital! Our Dell XPS 15-L521x batteries are CE, UL, ROHS certified and offer a variety of protection features to prevent common risks such as short circuits, overheating and overvoltage. Protect Your Data, Protect Yourself, Trust LaptopBatt!
Not Enough? There Are More!
FAST SAME DAY SHIPPING
In most cases, the order will be processed and shipped within 24 hours. This does not include weekends or holidays. You will receive an email notification once your order ships.
FREE SHIPPING OVER $99
Only $1.99 shipping if the order is shipped to the US, Australia and UK, and free shipping for a purchase of $99!
We have multiple warehouses in different countries, including the US, Hong Kong, Australia & the UK. We have enough inventory than any other battery company.
During the warranty period, if the Dell XPS 15-L521x laptop battery is completely dead, we will replace the battery for you.