Battery for Lenovo ThinkPad T400S Black, T410s

hen the Lenovo ThinkPad T400S battery bar displays ‘incompatible battery’

Seeing your Lenovo ThinkPad T400S battery bar display ‘not charging’ or ‘incompatible battery’ is hard to take in. But there are easy solutions. The issue might stem from the laptop’s BIOS, which will require a system upgrade to identify and charge the battery. The current configurations of the system may only suit an Original Equipment Manufacturer (OEM) battery. It can prevent your Lenovo replacement battery from communicating properly with your software. You can find a suitable BIOS upgrade from Lenovo official website. Recharge your ThinkPad T400S battery after the upgrade for 12 hours and resume regular usage.

When a fully charged Lenovo ThinkPad T400S battery does not work

There are instances whereby your fully charged battery would not power up your PC. This ‘False Peak’ often happens when a discharged battery for ThinkPad T400S is used for the first time in several months. The charging indicator reveals a fully charged battery within the initial 10 to 15 minutes of charging, whereas the reverse is the case. When this occurs, plug the battery in for an hour or so. Afterward, unplug the battery and immediately plug it in. Normal charging of the Lenovo ThinkPad T400S battery will commence and the battery indicator will light up. You may have to do this several times within this period.

Lenovo ThinkPad T400S Battery charging stops at 95%

Calibrating your Lenovo laptop through the Windows Power Management tool will stop this from happening. Afterward, unplug the laptop’s ac adapter and drain the battery. Plug your Lenovo ThinkPad T400S battery until it is fully charged. You may need to repeat the process until you attain a full charge

When a new ThinkPad T400S battery gets bad

After purchasing a new replacement battery for ThinkPad T400S Lenovo laptop, you may still experience some issues with it. After trying several other troubleshooting steps to no avail, your battery is likely bad. Then, it is up to you to return it to where you bought it. Several reasons might have caused the damage. Transporting and packaging are some of the reasons why your replacement battery could go bad. Still, it is important that you purchase your Lenovo ThinkPad T400S laptop battery from the right source.

Fit Machine Models:

• Lenovo ThinkPad T400S
• Lenovo ThinkPad T410S
• Lenovo ThinkPad T410SI

Compatible with numbers:

• Lenovo 42T4688
• Lenovo 42T4689
• Lenovo 42T4690
• Lenovo 42T4691
• Lenovo 42T4832
• Lenovo 42T4833
• Lenovo 51J0497
• Lenovo ASM P/N 42T4832
• Lenovo FRU P/N 42T4832
• Lenovo 59
• Lenovo 59+

Fit Machine Models:

• Lenovo ThinkPad T400S
• Lenovo ThinkPad T410S
• Lenovo ThinkPad T410SI

Compatible with numbers:

• Lenovo 42T4688
• Lenovo 42T4689
• Lenovo 42T4690
• Lenovo 42T4691
• Lenovo 42T4832
• Lenovo 42T4833
• Lenovo 51J0497
• Lenovo ASM P/N 42T4832
• Lenovo FRU P/N 42T4832
• Lenovo 59
• Lenovo 59+