4200mAh Acer AP18K4K Laptop Battery for Acer Chromebook Spin 311 C721 R721T

Product Feature:

Premium Core: Equipped with genuine Grade A cells for superior stability and high performance.

Durable Cycle Life: Rated for 500–800 charge/discharge cycles for long-term use.

Guaranteed Compatibility: Fully compatible with original Acer AP18K4K specifications and devices.

Comprehensive Safety: Built-in over-charge, over-current, over-voltage, and short-circuit protection.

Advanced Engineering: Utilizes cutting-edge PCB technology for safe and consistent power delivery.

Certified Quality: CE, ROHS, and MSDS certified to meet international standards.

Our Promise to You:

100% Brand New Product.

30-Day Money-Back Guarantee.

1-Year Warranty.

100% Secure Shopping Guarantee.

Follow the notice below, Better using your Acer AP18K4K Laptop Battery

• Storage - Store your Acer AP18K4K Laptop Battery in a clean, dry, cool place away from heat and metal objects. The Acer AP18K4K batteries will self-discharge during storage; remember stored at about 40% state-of-charge.
• Charge and discharge - For lithium ion batteries, you do not need to discharge them fully and recharge constantly. You need to do a full discharge only about every 30 charges. Do not charged to higher voltages than its threshold voltage.
• Exercise Your AP18K4K Battery - Do not leave your batteries dormant for long periods of time. We recommend using the battery at least once every two to three weeks. If a battery has not been used for a long period of time, perform the new battery break in procedure described above.
• Calibrate Your batteries - If your Battery's 76% even less in work , you must fully charge, fully discharge, and then fully recharge the Laptop Battery pack.
• Consider removing the Acer Chromebook Spin 311 C721 R721T battery replacement from a laptop when running on fixed power.
• Do not short-circuit. A short-circuit may cause severe damage to the battery.
• Avoid propping your laptop on a pillow, blanket, or other soft surface that can heat up. Your Acer Chromebook Spin 311 C721 R721T battery is a lot less efficient when not within its standard operating temperature range.
• Attention:
• the capacity is low in current,CPU will be in electricity-saving model and battery can not be charged.In this case,take off the battery and fit on to rouse the CPU. The Acer AP18K4K battery can be charged then.
• Remove the battery when don't use if for long time,or the currency will be lost and the cell will be damaged.
• Recharge the battery as the circle more than once per month to make the management of capacity reach its best status, and prolong Acer Chromebook Spin 311 C721 R721T battery replacement useful life.