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Battery Green Cell AC44D for Acer Aspire E15 E5-511 E5-521 E5-551 E5-571 E5-571G E5-571PG E5-572G V3-572 V3-572G
The Green Cell AC44D battery is a replacement battery designed for Acer Aspire E15 series laptops, including E5-511, E5-521, E5-551, E5-571, E5-571G, E5-571PG, E5-572G, V3-572 and V3-572G. This Li‑Ion battery has a nominal capacity of 4400 mAh and a black housing that matches the original form factor and connector layout. It is engineered to deliver stable power, restore portable runtime and maintain compatibility with the laptop's charging and power management circuitry.
The Green Cell AC44D uses lithium‑ion cells selected for consistent real-world capacity and long cycle life. Its construction follows the original battery shape and connector arrangement to ensure a precise fit with the specified Acer Aspire E15 models. The battery provides stable voltage under load, supports normal charging profiles, and incorporates safety measures common to modern laptop batteries to reduce risk of overcharge and overheating.
Power down the laptop and disconnect the AC adapter before replacing the battery. Remove the existing battery according to the laptop manufacturer’s instructions, align the Green Cell AC44D with the battery bay and press until it locks into place. Reconnect the AC adapter and charge the battery fully before first use to allow the laptop’s power management to calibrate remaining capacity. Observe proper handling: avoid short circuits, mechanical damage and exposure to liquid.
For best battery longevity, perform periodic charge cycles (charge to full then discharge partially) and avoid keeping the battery at full charge or empty state for prolonged periods. Use the original or manufacturer‑recommended AC adapter for charging and follow Acer’s service instructions when installing or removing the battery.
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