L21M4P75 Laptop Battery 57Wh 3711mAh 4-Cell 15.36V Compatible with Lenovo ThinkPad T14s Gen 3 / ThinkPad T14s Gen 4 Series L21L4P73 L21B4P71 L21D4P74

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Step 1: Press the "Windows + R" keys to pop up the window.
Step 2: Enter "msinfo32" and click "OK".
Step 3: View the "System Model" in the right pane.
Step 1: Shut down the laptop and unplug the power cord.
Step 2: Carefully use a screwdriver to remove the back panel to prevent damage to laptop components.
Step 3: Disconnect the cable connected to the battery, then you can check the model number and specific specifications on the battery.
Brand new battery
Rechargeable up to 1000+ times
Overcharging protection
Overheating protection
Short circuit protection
professional
Battery Model: L21M4P75
Capacity: 57Wh 3711mAh 4-Cell
Voltage: 15.36V
Battery Type: Li-ion
Condition: Brand New
Color: Black
for Lenovo ThinkPad T14s Gen 3 (Type: 21BR, 21BS, 21CQ, 21CR) series
for Lenovo ThinkPad T14s Gen 4 (Type: 21F6, 21F7, 21F8, 21F9) series
Replace Part Number:

L21M4P75 SB10W51976 5B10W51875 SB11M89832 5B11M90031
L21B4P71 SB10W51978 5B10W51877 SB11M89834 5B11M90033
L21L4P73 SB10W51975 5B10W51874 SB11M89831 5B11M90030
L21D4P74 SB10W51977 5B10W51876 SB11M89833 5B11M90032
Brand new battery
100% compatible
Meet OEM specifications
Rechargeable up to 1000+ times
capacity is true, stable current, low self-discharge
short circuit, overheat, and overload protections
Multiple protection
Strong battery life
Good "core" quality
After getting the battery, please install the battery correctly, make sure that the battery connector is firmly connected to the laptop motherboard, and start charging the laptop. Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to wake up the new battery.
Remember not to discharge the battery to 0%, otherwise the battery will be easily damaged.
After the battery is exhausted, please charge it in time. If it is not charged for a long time, the battery may be damaged.
If the battery is not used for a long time, it needs to be charged to more than 70% for storage. The storage time should not exceed 3 months.
If you often use it with a charger, please use the battery power regularly and use it more than once a week.
Please use original chargers. Inferior chargers will affect the normal charging of the battery.
Regularly clean the fan dust to increase the heat dissipation effect and reduce power consumption, which can effectively extend the battery life.

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