Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Bosch GBA18V40 CORE18V 18V 4Ah Compact Lithium Ion High Power Battery with Fuel Gauge and CoolPack TechnologyMaximum Power and Efficiency in a Lightweight Compact Design Upgrade your cordless workflow with the Bosch GBA18V40 CORE18V 4Ah Advanced Power Battery, the ultimate solution for professionals who demand high performance without the bulk. Weighing only 1. 1 lbs, this battery utilizes the latest 21700 lithium ion cell technology to deliver a single layer power source that rivals much heavier, double layer batteries. It provides up to 2x the runtime and
Maximum Power and Efficiency in a Lightweight Compact Design
Upgrade your cordless workflow with the Bosch GBA18V40 CORE18V 4Ah Advanced Power Battery, the ultimate solution for professionals who demand high performance without the bulk. Weighing only 1.1 lbs, this battery utilizes the latest 21700 lithium-ion cell technology to deliver a single-layer power source that rivals much heavier, double-layer batteries. It provides up to 2x the runtime and 60% more power than legacy 2Ah models, making it the perfect "Goldilocks" choice for standard to medium-duty applications like drilling into concrete, metal grinding, and repetitive cutting where fatigue is a factor.
Built to last, the GBA18V40 features Bosch’s exclusive CoolPack™ 2.0 technology, a cutting-edge heat management system that pulls heat away from the cells to extend battery life and run-time significantly compared to batteries without this protection. The internal architecture includes copper end plates and power rails to reduce resistance and boost efficiency. Fully compatible with the entire Bosch 18V tool lineup and the multi-brand AMPShare™ System, this battery also includes a high-resolution charge-status indicator, ensuring you never run out of power unexpectedly in the middle of a critical task.
Key Features
- Compact Powerhouse: Weighs just 1.1 lbs while delivering the performance of heavier batteries, reducing user fatigue during overhead work.
- Next-Gen Cells: Features a single layer of enhanced 21700 lithium-ion cells for greater energy density and efficiency.
- CoolPack™ 2.0 Technology: Advanced heat dissipation housing cools the battery faster, extending its overall lifetime.
- High Efficiency Design: Engineered with copper end plates and power rails to minimize resistance and maximize power delivery.
- On-Board Fuel Gauge: High-resolution LED charge-status indicator provides clear, instant visibility of remaining runtime.
- Universal Compatibility: Works seamlessly with all Bosch 18V Lithium-Ion tools, chargers, and the AMPShare™ multi-brand system.
- Optimized Performance: Delivers 100% more runtime and 60% more power compared to standard BAT612 18V 2Ah batteries.
What's Included
- (1) GBA18V40 18V CORE18V® Lithium-Ion 4 Ah Advanced Power Battery
Specifications
| Voltage | 18V |
| Battery Capacity | 4.0 Ah |
| Weight | 1.1 lbs |
| Chemistry | Lithium Ion |
| Model Number | GBA18V40 |
| CoolPack Technology | Yes (CoolPack 2.0) |
| Fuel Gauge | Yes |
| System Compatibility | Bosch 18V & AMPShare™ |
| Housing Material | Plastic |
| Color | Black |
| Warranty | Limited 1 Year (2 Years w/ ProVantage) |
Pro-Tip: This compact 4Ah battery is ideal for overhead applications, such as installing drywall or electrical boxes. By pairing the runtime of a larger battery with the lightweight profile of a compact pack, you can work longer on oscillating multi-tools or impact drivers with significantly less wrist strain.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 707 reviews
Sort
Product Reviews
★★★★★ 5
Great Chair and Outstanding Customer Service
Color: Black Full Mesh, Style: Executive
I desperately needed a new office chair. I ordered this chair with the mesh seat and it spike up my sciatica. I reached out to the company and Alice took great care to address the issue. She sent me a new seat with a foam cushion and it resolved the issue immediately. The chair is incredibly comfortable with the lumbar support, adjustability and foot support. She also sent me upgraded wheels as my chair is on a thin chair mat on hard wood floors. Alice was extremely responsive with possible options and very thorough with instructions on how to replace the seat. It is a high quality chair that I anticipate will last me quite some time. I highly recommend this company and will definitely order products from them again should the need arise. Thank you, Alice!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
★★★★★ 5
Well-packaged, quality materials, easy to assemble, very comfortable, great customer service
Color: Black Full Mesh, Style: Executive
When I received this package, I was surprised at how small/compact it was--hard to believe a high-back office chair could fit in that box! As I unpacked it, I was impressed by two things: first, how incredibly well it was packaged with an obvious intent to protect the components; second, how solid, heavy-duty, and high-quality those components were.
I got the box unpacked and read the instructions. They were simple and easy to understand, and included so many "here's a good tip" notes that it was obvious that a lot of thought and experience had gone into writing them. I found the chair simple to assemble and had it done in less than 15 minutes.
The chair was very adjustable. I was able to get the height to exactly what I wanted with no trouble at all. I was also able to adjust the height of the lumbar support, and to adjust how far it extended. There are a lot of adjustments you can make, the instructions lay that out quite thoroughly, too. As a result, the chair was very comfortable and helped me sit with a healthy posture.
I bought this chair because I had begun having an ache in my lower back, which I suspected was due to a chair I had been using for over 5 years. Within 3 days, the back pain was gone.
I was also very impressed with the customer service. Their manual mentions in multiple places things you can try if you have any issues, and always ends with "call us". Their team reached out to me after a few days to make sure I got the chair assembled with no issues and that it was comfortable. This was all part of the all-around quality of this purchase.
I'm very happy with this chair!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
Comparable to Higher-End Chairs, Solid Build and Support Without the Premium Price
Color: Black Full Mesh, Style: Executive, Color: Black Full Mesh, Style: Executive
I’ve been using this chair for a bit now and it’s been a genuinely upgrade. The build quality stands out right away, it has real heft and doesn’t feel cheap or hollow. Everything fits together cleanly and once assembled it feels stable and planted. I’m over 6 ft and 200+ lbs and it handles that without any issue, no creaking or sense that it’s being pushed to its limits.
There’s enough space in the seat and back that you don’t feel boxed in. I added an extra ergonomic cushion and it still feels roomy, which isn’t always the case with chairs in this category. The adjustability helps a lot here, especially the lumbar support. Being able to move it up and down and also forward and back makes it easy to actually get it where you need it, instead of just accepting a fixed position. The armrests are also easy to dial in, especially if you’re switching between typing, reading, or leaning back a bit. The tilt range is useful, and the tilt tension is stronger than I expected. Even at my size it takes a bit of effort to lean back, which I see as a positive since it feels controlled and supportive rather than loose or overly easy to recline. The mesh is another strong point. It came in perfect condition, no snags, no loose threads, no rough edges anywhere. There weren’t any bits of untrimmed plastic on the frame either, which says a lot about the quality control. The mesh itself is taut with a bit of bounce, so it doesn’t sag but still has some give, which makes long sitting sessions more comfortable.
Assembly was straightforward and clearly thought through. The instructions are easy to follow, but what stood out were the built in redundancies that keep you from second guessing anything. There are multiple left and right indicators when installing the arms, a clear front facing marker for the gas lift, and the screws are labeled in the packaging so you’re not guessing which goes where. It’s one of the smoother assembly experiences I’ve had.
I also reached out to activate my warranty and had a very positive experience. I spoke with Alice who was very knowledgeable, quick, warm, and they went out of their way to help me with whatever I needed. When I inquired about the extra screw holes under the chair, she let me know that this was for a foot rest which was still in the production phase and unprompted offered to have one shipped to me when they were ready! There is an excellent team behind the product.
Overall: well built chair with good materials, thoughtful design choices, and good adjustability to make it work for different setups. It feels durable, comfortable over longer periods, and especially well suited if you need something that can handle a larger frame without sacrificing support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
Excellent chair/great support.
Color: Black Full Mesh, Style: Executive
Excellent, comfortable chair! I was surprised at how easy it was to assemble---but the directions were super clear and all the pieces and parts were labeled. Once I received the chair, I was also surprised with the email follow up from Alice at Molents. All this for a reasonably priced chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
★★★★★ 4
Great Ergonomic Support and Fit, with Minor Adjustment Caveats
Color: Black Full Mesh, Style: Executive, Color: Black Full Mesh, Style: Executive
As someone who is 5'4" and 140 lbs, the size of the chair feels ideal, and the seat cushion is spacious without feeling overwhelmingly large. The breathable mesh material is high quality, keeping me cool during long working sessions while still feeling sturdy. The back support and adjustable lumbar feature aligns perfectly with my spine and has noticeably reduced my posture fatigue. The height adjustment mechanism operates smoothly to align perfectly with my desk, and the assembly process was surprisingly straightforward, taking less than 20 minutes with clear instructions and tools included. My only slight hesitations are regarding armrests not being long enough. The wheels are not easy to roll on carpet and require a bit of extra effort to move. Maybe a chair mat might be helpful on carpeted floors. However, for the price, the comfort and build are impressive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026