Ratings may include incentivized customer reviews.
What Customers Are Saying
The battery offers excellent runtime and consistent power output. It has a compact, lightweight design that is easy to handle. The battery charges quickly and is built to withstand heavy use and drops. It is compatible with a wide range of Bosch and partner brand power tools. Overall, this is a high-quality, reliable battery that delivers outstanding performance.
Customer review summary generated by AI, including incentivized reviews.Great
Would RecommendBosch Batteries are awesome.
Verified PurchaserVerified Pro
Amazing battery
Would Recommend[This review was collected as part of a promotion.] I received this product a couple weeks ago and I cant stop using it. I love that it holds a very long charge. It also does charge really fast. It connected to tools so smooth. The lower it hold is amazing I will be stitchall my tools to Bosch.
From boschtools.com
18V battery charger
Would Recommend[This review was collected as part of a promotion.] The 18V Core Lithium-Ion 4 battery charger basically is your standard charger, the battery can be installed and removed with ease. Both indicated lights are clear and bright, the one light stays on continuously whether a battery is installed or not. This however does not effect the performance of the charger, it is merely a personal preference.
From boschtools.com
Strong battery
Would Recommend[This review was collected as part of a promotion.] Not only is this actually pretty big and durable, but it’s actually got an amazing battery life. They last a pretty good while before we needed to swap it out and charge another battery. Did drop it, but it didn’t chip or anything.
From boschtools.com
Compact good quality battery
Would Recommend[This review was collected as part of a promotion.] I used this battery to power the vacuum that i was also testing. It never gave me any troubles, and seemed to charge quickly. I am very impressed with the size of these batteries, I initially thought that the battery was a 2 ah battery, not a 4 ah.
From boschtools.com
Definitely gets the job done.
Would Recommend[This review was collected as part of a promotion.] Provides a good amount of current to get whatever job done. It doesn’t take forever to charge. It’s extremely easy to remove from devices for charging and reinstall. It’s also has good lasting power. Great little battery.
From boschtools.com
Great battery
Would Recommend[This review was collected as part of a promotion.] The 18v battery is a great battery size. It charged very quickly. It held the charge for a long time. I like the fact that it's holds it power until the end. I highly recommend this 18 v battery for heavy duty
From boschtools.com
Bosch power battery
Would Recommend[This review was collected as part of a promotion.] my limited use of this battery pack from Bosch was not long enough to test its longevity and quality of performance on regular use. Small and compact and fits well onto tool. Button used to remove it is a little sticky and not ergonomically positioned for easy changeout. Like the battery usage light function.
From boschtools.com
Core18V 4.0 AH Lithium Ion Battery Review.
Would Recommend[This review was collected as part of a promotion.] Overall I am very satisfied with this battery. I am a mason by trade and drilling holes in concrete, brick, and stone are pretty much an everyday thing for me. I used the Core18v 4.0 AH 800 watts of power with the Bosch Bulldog Rotary Hammer with Dust Collector. I attached it to the dust collector. It has a lot of power and lasted for quite a few holes that I had to drill into a concrete foundation. When it finally died, I used the fast charger...
From boschtools.com
18V CORE18V® Lithium-Ion 4 Ah Advanced Battery
Would Recommend[This review was collected as part of a promotion.] 18V CORE18V® Lithium-Ion 4 Ah Advanced Power Battery is great for the GDE18V-26DN 18V SDS-plus® Bulldog™ 1 In. Dust Collection Attachment. It seems to last about 30 minutes when collector is turned on.
From boschtools.com
Compact and Long-Lasting Battery for Cordless Tool
Would Recommend[This review was collected as part of a promotion.] I received the Bosch 18V CORE Lithium-Ion 4 Ah Advanced Power Battery free of charge in exchange for testing and reviewing the product. I used it exclusively with the Bosch Brushless 18-Gauge Narrow Crown Stapler, and it proved to be a powerful, lightweight, and reliable companion. This battery impressed me with its performance during maintenance and repair work at our remote West Texas deer stand. With no access to power outlets, the combinat...
From boschtools.com
18v battery
Would Recommend[This review was collected as part of a promotion.] Battery is slim and compact making it lightweight and easy to handle. Power level indicator is bright and the button is easy to press. Clips onto the tools easy and removal is easy and smooth. Good quality.
From boschtools.com
A must have
Would Recommend[This review was collected as part of a promotion.] Good battery that is not as bulky or heavy in weight. The battery holds it charge and doesn't take long to charge. I am also able to use the battery getting a task done without having to stop and switch out battery or it getting hot and overheating it stays perfect.
From boschtools.com
Battery life isn’t as long lasting as I expected
Would Recommend[This review was collected as part of a promotion.] This battery is very easy to charge and not too heavy either. It slides right in with minimal effort. The issue I had with it is that I felt the battery life is not as long as my other batteries. I thought perhaps I didn’t charge it enough, but when I recharged it, I had the same issue. It has enough for about half the job and then you have to recharge it (I was doing a semi big job).
From boschtools.com
Sets the bar for compact and powerful batteries
Would Recommend[This review was collected as part of a promotion.] For me, Bosch has been the standard for compact, powerful batteries. When Bosch released their Core lineup I was throughly excited. You have multiple options for sizes which keeps it simply yet covers all of the tools you would want. The 4 Ah in particular is the sweet spot for power, size and runtime. There is a 5 light battery gauge (much preferred because it gives a more accurate battery level) and the release button has always been easy to ...
From boschtools.com
Top Notch Battery Technology
Would Recommend[This review was collected as part of a promotion.] The Bosch batteries are by far the best hand tool battery available. The run time and power is excellent and they stay very cool during use, even while under heavy loads. The form factor is much more compact than the competition which helps getting into tight areas. The battery release buttons operate smoothly and usually require only one hand to remove. Bosch definitely leads the pack in battery technology.
From boschtools.com
Very nice battery
Would Recommend[This review was collected as part of a promotion.] I really like this battery and the fact that it charged fast. It also has a very useful indicator light that lets you know how much of a charge is left on it. The battery lasted a long time as i used it on two different projects.
From boschtools.com
Simple and the absolute best.
Would Recommend[This review was collected as part of a promotion.] Really reliable battery tought. The battery lasts really long and holds it's power during use. Provides strength enough for any job. Made durable and will last. Very happy with this battery since it works very well and which has a long duration when using it. It is a very durable product and of excellent quality. I recommend it 100%. It is also super easy to use.
From boschtools.com
Advanced and Powerful!
Would Recommend[This review was collected as part of a promotion.] The Bosch 18V Lithium Ion Battery is compact, lightweight and extremely powerful. It’s long lasting, holds a charge well and keeps tools running smoothly for long periods of time. This battery is designed with a charge indicator, high powered lithium cells and CoolPack 2.0 technology. I like that’s it’s durable, solid and made to last.
From boschtools.com
Holds great
Would Recommend[This review was collected as part of a promotion.] This battery is one of the best I have used. It’s holds charge for a very long time and gives your machine enough power to get every job done without having to stop and recharge. This is great for those long jobs.
From boschtools.com

Thank you for your rating and feedback regarding our GBA18V-40 Battery. We sincerely apologize for the inconvenience you’ve experienced with your batt...