ProCore 18V 4.0Ah vs GBA 18V 4.0Ah
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Furniture manufacture / Furniture industry
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Hello, except the weight, is there another advantage ProCore battery offers?
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Joinery installation in the broadest sense
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Hello markhope.
In short, yes. 
Besides being 82g lighter than the standard GBA 18v 4.0ah, it's also a slimmer pack - it's not as tall. It has a slightly bigger footprint of course to house the larger cells but I find the slimmer pack useful in an impact driver when working between joists, studs and inside cabinets. 
One major benefit (covered in brief in my video head to head below) is the new ProCores have eliminated airgaps between the cells. This, combined with the new weld tech means the cells dissipate heat much more efficiently than the old batteries. In use, as you can see in my head to head in the SDS test, this means that when under continuous heavy load, the ProCore gets quite hot as the pack whips heat away from the cells. In my test, this meant the ProCore was able to do it's run in one pass, no stoppages, until it was depleted. The same test with the old GBA saw the SDS drills thermal protection kick in 2 or 3 times in order to protect the cells as they got hot. A definate win for the ProCore.
Another thing I did note - although Bosch themselves don't claim it for the 4.0ah ProCore - is there does seem to be a slight performance boost. You can notice it audibly on the combi drills - again something I show in my vid. It does seem that all my 18v tools work just that bit better with the ProCore. I do mention in my review though that some of this perceived boost could be down to the GBA 18v 4.0ah is getting on a bit now. That said, I do have newer GBA's ranging from 2 - 6ah and none give any incling of a boost in performance. 
Hope this helps.


This post was edited by bailey on 03.11.2018, 20:05 o’clock
Reason: spellergoning

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Thank you so much for the extensive answer and the video. (I wonder why you don't have a lot more subs).

I have another question, when Bosch claims, "Long-lasting: Up to ...% longer lifetime compared to an ordinary battery pack – due to the improved COOLPACK 2.0 "

Does this mean, over all longer lifetime of the battery, for example that you can re-charge it more time?

Or does it mean that you can have more runtime from one full charge?

For example, does it mean that you can have 150 re-charges of GBA, and 200 of ProCore? (number is accidental)
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Hello again markhope, and thanks. The subs are growing slowly but my content is quite specialised/specific. I don't particularly promote my content either - except on this forum. In fact, I only started this channel to compliment my input on this forum.
To answer you question though, yes, that's what Bosch means by longer lifetime. As in my previous post, this is due to the 2.0's/ProCores efficiency at dissipating heat from the cells. Heat kills cells, so if you manage that better, the cells and hence the battery, will last longer - give you more charges. 
All the best