11.4V 44WH 45N1742 45N1743 For Lenovo ThinkPad T550 T550s W550 W550s 45N1740 45N1741 Replacement Laptop Battery

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1. Before normal use of the new battery, discharge the capacity to about 10%, then fill the cycle 3-4 times. Be careful not to discharge to 0%. This will make the battery more fragile.

2. When using the battery, recharge it immediately when it runs out. If you do not charge the battery for a long time, the battery may be damaged, so be careful with exposure and moisture.

3. Do not disassemble, crush or puncture the battery. Do not throw the battery into fire or water.

4. If you do not use the battery for a long time, you need to charge it 70% or more and store it, the storage period should not exceed 3 months, and if you do not use it for more than 3 months, you need to fill the power.