We are a manufacturer specializing in various laptop batteries and tablet batteries. We emphasizes the basic product concept of high-quality, safety and reliability. ANTIEE Laptop batteries are 100% DIRECT from Manufacturer with over 10 years' Laptop Battery Production and Research experience.
We are always working hard to ensure high quality laptop battery standards through multiple quality checks. With multi-protections such as short circuit, overheat, and overload. ANTIEE promises to deliver each customer to valuable, efficient and reliable battery. Let your notebook get more freedom.
Battery Model:L21M4P75Voltage:15.36VCapacity:57Wh 3711mAhCell:4-CellCondition:100% New from ManufacturerBattery Type:Li-Polymer REPLACE PART NUMBER:
L21B4P71 SB10W51978 5B10W51877 SB11M89834 5B11M90033
L21L4P73 SB10W51975 5B10W51874 SB11M89831 5B11M90030
L21M4P75 SB10W51976 5B10W51875 SB11M89832 5B11M90031
L21D4P74 SB10W51977 5B10W51876 SB11M89833 5B11M90032
COMPATIBLE LAPTOP MODELS(use "Ctrl+F" to find your model quickly)
for Lenovo ThinkPad T14s Gen 3 (Type: 21BR, 21BS, 21CQ, 21CR) series
for Lenovo ThinkPad T14s Gen 4 (Type: 21F6, 21F7, 21F8, 21F9) series
First check if the battery is the same size as your original battery after receiving it.
Before disassembling your laptop, put the old battery charge below 25%.
We recommend that you search for battery removal tutorials on the Internet in advance, or seek help from a professional technician. We won't responsible for any damage due to improper operation.
When installing the battery, pay attention to whether the battery cable is fixed. If the battery cable is not installed correctly, the battery may not be charged.
Why doesn't your laptop detect the battery or display the battery level properly after installing the battery?
Could be caused by battery loose. Please check whether the battery cable is installed properly.
May be due to conductive material damaged which the laptop motherboard and battery anode and cathode contact position, you can try to confirm it with your original battery.
Check whether the battery drive is in normal condition, if not, download the corresponding driver software to update.
New battery: Discharge the new battery to 10% (not 0%), then charge it to 100%. Cycle 3-5 times to activate its maximum capacity before use.
Overuse: Do not run out of battery power to 0%, the lithium battery will turn on the charge protection so that it can not be recharged, which is the nature of lithium batteries.
Long-term storage: Charge it to around 50% when you store it long term. (Charge it once a month) Do not store at low power to prevent reduce the lifespan of a battery.
Adapter: Always use the proper ac adapter charger for your device.
Help others learn more about this product by uploading a video!4.0 out of 5 starsL21M4P75 L21B4P71 L21L4P73 L21D4P74 Laptop Battery Replacement for Lenovo ThinkPad T14s Gen 3/ ThinkPad T14s Gen 4 Series SB10W51978 SB10W51977 5B10W51874 5B10W51875 5B10W51876 57Wh 15.36V 3711mAh
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