BOSCH GBH 180-LI 18V - The batteries are too weak? Turns off.

Hi to all. I recently bought a BOSCH GBH 180-LI 18V cordless hammer drill, but only the body itself, because I have new batteries, but unfortunately only 18V 2.0Ah - the manufacturer recommends a minimum of 18V / 4.0Ah. Unfortunately, when I press the drill harder against the wall, the drill turns off and the battery light flashes - protection against overheating?

And here's the question: Is the drill turning off due to the 2.0Ah battery? Should I buy the one recommended by the manufacturer, i.e. 4.0Ah? I thought the Ah parameter is only for the drilling time and will not affect the force etc. Thanks for the answer

xpac wrote:

It seemed to me that the Ah parameter is only relevant for the drilling time and will not affect the force

And here you are rather wrong when speaking "peasant" Ah has an impact on the drilling time and drilling force, in short, the battery is simply not efficient. More like a replacement battery, but someone should say what he knows better than me because I don't want to charge you for costs

The flashing light indicates that the tool is overloaded (not overheated) and it does not depend on the capacity of the batteries used. It is about pressing the drill bit against the wall too hard - then the drill turns off. Cordless tools have the advantage that they can be used where there is no access to the mains or in places where the power cord would disturb us. However, they are less powerful than their network counterparts and therefore require more patience. You can still use 2.0 Ah batteries, but you need to be patient, because the work will take longer than if you were using a network tool.

Narzędzia Bosch wrote:

The flashing light indicates that the tool is overloaded (not overheated) and it does not depend on the capacity of the batteries used. It is about pressing the drill bit against the wall too hard - then the drill turns off. Cordless tools have the advantage that they can be used where there is no access to the mains or in places where the power cord would disturb us. However, they are less powerful than their network counterparts and therefore require more patience. You can still use 2.0 Ah batteries, but you need to be patient, because the work will take longer than if you were using a network tool.

Thank you for your response. It's good that I didn't buy 5.0Ah because I was ready for it - I don't care about drilling time, only 4 holes a week. Then I was a bit disappointed ... I have a GSB 18-2-LI drill and driver and it never turned off even though I drilled it with 12mm drill bits in concrete - it just has a weak impact. Following this lead and the advertising slogan "Cordless hammer with a performance comparable to a corded tool" I thought that the GBH 180-LI would be an ideal solution, but it can turn off even with an 8mm drill - where, as I mentioned, the tiny GSB didn't even "groan" .. .

GSB 18-2-LI
GSB 18-2..I.jpg Download (32.93 kB)

The GBH 180-LI breaker is a strong tool, so it's an unusual situation. We recommend that you send the tool with rechargeable batteries for service to find out what could be the cause of the problem with the GBH 180-LI.

Narzędzia Bosch wrote:

The GBH 180-LI breaker is a strong tool, so it's an unusual situation. We recommend that you send the tool with rechargeable batteries for service to find out what could be the cause of the problem with the GBH 180-LI.

Summarizing. The Electronic System Module was replaced - I was so unlucky that the hammer was damaged "from new", thank you for the advice, I'm getting ready for testing