How to Bypass BMS (Battery Management System) on a Laptop


A laptop battery pack integrates a battery management system (BMS) that ensures that the battery is kept safe and functional at all times. It’s important to understand this safety measure so you can bypass it if necessary. BMS is designed to keep the battery safe, prolonging its lifespan and preventing the risk of overcharging, which could cause it to catch fire or explode.

It does so by forcing the battery to stop charging once it’s full, even if it’s plugged in. In rare cases, however, you may need to bypass this system and use the battery outside of its normal parameters, for example, when operating on external power or in certain emergency situations. This guide will help you with everything from understanding what BMS does and how to bypass it on your laptop in no time.

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Disabling Battery Management System: How Does it Work?

The Battery Management System is a critical component of any laptop battery pack. Its purpose is to prevent the battery from overcharging, overheating, and other problems. It is responsible for continuously optimizing the battery performance on your laptop. If you want to bypass the BMS on your laptop, there are a few things you need to do.

Bypass Battery Management System

Your laptop battery pack integrates a Battery Management System (BMS) that ensures your battery is kept safe. What this means is that when you charge your laptop, the BMS will automatically shut off the charging once the battery is full. However, there are times when you may want to bypass the BMS in order to charge your laptop faster. If you want to bypass BMS on your laptop, follow this step-by-step guide so that you can get back to work or play as soon as possible. 

Step-by-step Guide On How to Bypass BMS on Your Laptop

1. First, find out where the battery management system is located. Second, disable the BMS.

2. Press the Windows + X keys simultaneously, and select Device Manager. Then, click on the arrow next to Batteries to expand that section. You will see two entries on the screen. This is because your laptop can use either of the entries to function.

How to Bypass BMS (Battery Management System) on a Laptop Step One

3. Right-click on “Microsoft ACPI-Compliant Control Method Battery” and select “Disable device”. Click “Yes,” if prompted.

How to Bypass BMS on a Laptop Step Two
How to Bypass BMS (Battery Management System) on a Laptop Step Three

4. Test your laptop to see if the battery is working correctly. You will know that it has been disabled when the laptop operates for more than an hour with one charge and then shuts down.

It’s also important to understand that not all laptops have a BMS, so don’t waste time trying to disable it if it doesn’t exist.

5. Unplug the power cord from your laptop and remove the battery from the laptop.

6. Insert two paper clips into two different metal pins inside your laptop. Make sure not to touch any other parts of your laptop while doing this! 

7. Plug in the power cord and turn on your computer. Please wait for it to boot up fully and plug out the power cord again before taking out paper clips. 

8. Congratulations! You have bypassed BMS on a laptop!

Disabling Battery Management System: What are the risks involved?

Sometimes, you may want to disable your laptop’s battery management system (BMS). This can be useful if you’re using your laptop in an area with a lot of dust or if you’re constantly moving your laptop around. Plus, this can come in handy if you have a bad battery. However, there are some dangers associated with disabling the BMS. 

If the battery pack is damaged, it could overheat and catch fire. Additionally, if the BMS is disabled, the battery may not charge properly, which could shorten its lifespan. If you are trying to use the laptop without a battery, you need to be even more cautious. An outage in your house will make your laptop shut down instantly, potentially causing severe damage to the system or even the motherboard.

Frequently Asked Questions

Is it possible to bypass BMS on a laptop? 

Yes, bypassing the battery management system (BMS) on a laptop is possible. Bypassing BMS on your laptop will allow you to use your laptop without a battery. However, there are certain risks involved as well.

Is it safe to bypass BMS on my laptop? 

The answer to this is quite unclear. However, it is generally safe to bypass BMS on your laptop. Some risks might be involved, such as improper battery health, unoptimized battery performance, and shortened battery life. 

Can I use my laptop without a battery?

Yes, you can use your laptop without a battery. For this, you need to disable the BMS driver on your computer. Once you’ve done this, you can check this guide for more information.

Final Words

Now that you know how to bypass BMS on a laptop, you can keep your laptop battery pack safe and avoid any potential problems. This is a great way to keep your laptop running smoothly. However, remember that this is not a permanent solution, and you should still take care of your battery pack. We hope this concise guide will help you successfully bypass BMS on your laptop. And if you have any questions, let us know.

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