For Razer Blade 15 base 2020 2021 RZ09-0328 RZ09-03287E22 RZ09-03287E22-R3B1 RZ09-03287E22-R3U1 RZ09-03287E22-R341 RZ09-03304x RZ09-03305x RZ09. Remove the old battery, carefully install the new battery on the battery box, tighten the screws, and then connect the wires of the new battery.
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