Original X550 Battery +15v 2950mah 44wh Original New Genuine Laptop Battery A41-x550a For Asus X550 X550d X550a A450c A450e - Laptop Batteries - AliExpress
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Synergy Digital Laptop Battery, Compatible with Asus X550C Laptop, (Li-ion, 14.4V, 4400mAh) Ultra High Capacity, Replacement for Asus A41-X550, A41-X550A Battery - Walmart.com