Is there any discernible difference from the 8Ah other than runtime? Is there an extra row of cells?

The GBA18V120 Profactor Battery has a different contact plate vs. 8.0AH and other standard Bosch 18V Lithium Ion Battery. That is why it is only exclusive with Profactor. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.

Will this work with gbh 18v-26f?

No PROFACTOR line only! Will not attach to any other 18Volt tools.

Can they be used on any bosch 18v tool?

No only pro factor toolsCertain Roto Hammer’s the new half-inch impact which is awesome and the 6 inch grinder works great with all of them

Will this fit in the job site speaker?

No! The 12.0 Amp will only fit tools that are PROFACTOR line. This battery will fit any charger, but there is a stop piece on battery that only allows it to insert on Profactor tools. I have fit the 8 amp on speaker and it runs for days on one charge.

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Description

⚡ Power Up Your Workflow with Bosch’s Coolest 12 Ah Battery Yet!

LIGHTWEIGHT YET MIGHTY - At just 3.04 lbs, experience heavyweight power without the bulk—perfect for professionals who demand mobility and endurance.
UNMATCHED POWER RUNTIME - Delivers 50% more runtime than standard 8 Ah batteries, keeping your high-demand tools running longer without interruption.
ADVANCED CELL ARCHITECTURE - Triple-layer 21700 cells combined with copper end plates and flexible circuit boards reduce resistance and boost efficiency.
REVOLUTIONARY COOLING TECH - Bosch-exclusive CoolPack 2.0 rapidly dissipates heat, extending battery lifespan and maintaining peak performance on the toughest jobs.
SEAMLESS PROFACTOR COMPATIBILITY - Engineered exclusively for Bosch PROFACTOR tools with BITURBO Brushless technology, delivering corded-level power in a cordless package.

The Bosch GBA18V120 is a high-performance 18V CORE18V® Lithium-Ion battery featuring 12 Ah capacity and Bosch-exclusive CoolPack 2.0 technology. Designed for PROFACTOR tools with BITURBO Brushless tech, it offers 50% more runtime than the 8 Ah model, advanced triple-layer 21700 cells, and a lightweight 3.04 lb design. Its cutting-edge construction ensures reduced resistance and longer battery life, making it the ultimate power source for demanding professional applications.

Specifications

Manufacturer	Robert Bosch Tool Corporation
Part Number	GBA18V120
Item Weight	3.26 pounds
Product Dimensions	4.6 x 3 x 3.6 inches
Item model number	GBA18V120
Batteries	1 Lithium Ion batteries required.
Size	4.6" in
Color	Black
Style	Industrial
Finish	Brushed
Material	Blend
Pattern	Solid
Shape	Rectangular
Voltage	18 Volts
Item Package Quantity	1
Included Components	(1) GBA18V120 18V CORE18V® Lithium-Ion 12 Ah High Power Battery
Batteries Included?	No
Batteries Required?	No
Battery Cell Type	Lithium Ion
Battery Capacity	12 Amp Hours
Warranty Description	Bosch 18V batteries are covered by a three year limited warranty. For more information, visit manufacturer’s website

Reviews

E**H

Bosch Quality

More time.More power=More work gets done!Just realize that this largest version of Bosch's 18 volt batteries will only fit in certain Brushless and/or PROFACTOR tools such as their Leaf Blower and certain Impact Drivers etc etc.But when it fits in the tool, it delivers more energy for more time. A fantastic addition to your Bosch collection!

13.04.2025

D**E

Really nice battery

Very large 3lbs of lithium-ion bosch power house 👍🏻 I have the new cordless table saw & this works great on it. It won’t fit in the vacuum but if you cut off one small tab that is sticking up (look at another 6.4 amph battery and you can see it) now it will fit in all your tools but vacuum like I said. Works great on the blower/drill/impact/light. So if your in the market & the price is right I got mine for $139.00 I couldn’t say no to that price. It’s a great battery long lasting

6.04.2023

K**R

Plenty of Power

Yes, I admit I messed up buying this as I don't have the recommended "Pro Factor" drill to go along with it. I am using it in a regular Bosch hammer drill after modification. I will say is is a fabulous battery. I drilled 101 3/8" holes through 4" concrete slab before battery level was low. I bet if I use this as instructed in a ProFactor tool, it would work even better.

8.09.2023

M**K

Great battery

Long life, proportionately longer than 8ah

14.07.2024

N**E

Keeps u working

Love these

25.05.2025

E**E

Great battery

The 12Ah 18V great large battery from Bosch gives you excellent run time for the Profactor line of tools, specially Profactor rotary hammer drills.

13.08.2023

R**A

PROFACTOR

I thought I was ordering the 12ah with ampshare, but It was a PROFACTOR battery which can only be used with PROFACTOR products. I can still use it but the the pictures were misleading.

22.05.2024

M**.

Quality battery

Bosch nothing but Quality stands out best among others. Good quality battery. Heavy duty

17.04.2024

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