In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: li-2

New brooms are doing well and new cordless combi drivers are screwing and drilling better. Bosch has revised its PSB 18 LI-2 according to this motto. Why he do not get a new name we do not know. For the buyer that means being careful!

Especially if the offered model should be a special bargain. You hold fast instead of the new PSB 18 LI-2 the older model in the hand.

Despite the same name has changed a lot compared to the previous model: The battery looks different, a brushless motor to provide less wear and a Syneon chip to better divide the performance.

In addition, our test device bears the name "Ergonomic" for very gentle work, which is confirmed with a test seal of AGR (action healthy back).

We are curious if the missing additional grip does not have a negative effect. At first glance, he came a little closer to the Uneo Maxx - and the design has in no way harmed him.

Technical specifications


  • Battery voltage: 18 V
  • Battery capacity: 2.5 Ah
  • Torque levels: 20 + 2
  • Max. Stroke rate: 22,500 min-1
  • Machine weight with battery: 1.3 kg
  • Screw Ø up to: 10 mm
  • Drill-Ø in steel: 13 mm
  • Drill Ø in wood: 38 mm
  • Drilling Ø in masonry: 11 mm
  • Drill chuck: 13 mm keyless chuck
  • Idling speed (1st gear / 2nd gear): 0 - 430 / 1,400 min-1
  • Max. Torque soft / hard screwing: 28/32 Nm

Syneon chip for smart energy

What is and is the Syneon chip? According to information on is one intelligent control electronics, which makes it possible in cordless tools to divide the battery power meaningful. This means that the battery only then delivers full power when it really needs it becomes.

This is regulated by adjusting the current and voltage, which is routed to the motor as needed. Without sound knowledge in this area, this is certainly difficult to understand and comprehend. According to an independent test, the However, Bosch cordless, drilling and screwdriving tools allow 20% more screws to be screwed in and even 37% more drill holesreach as comparable tools.

In practice, when working with a cordless tool equipped with Syneon chip no difference in performance regulation to notice. The tool thus represents always the required power available, How this affects the endurance, can only show a long practical test.

Packaging and delivery

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: drills

Uniform suitcases from Bosch

With the Bosch PSB 18 LI-2, the desire of many DIY enthusiasts is fulfilled - a suitcase! Advantageous is the same design of the suitcase, which thus fits already existing models and snaps easily with its small pin.

Anyone who wants a firm connection of the suitcases, but must continue to Bosch blue and systainers to grab.

The suitcase is used stable and offers enough space for further accessories, lockable compartments for small parts one searches however in vain.

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: li-2

Meaningful accommodation of the operating instructions

It is interesting, as with all known green suitcases from Bosch, the integrated holder for the operating instructions, How often is the booklet loosely packed in the packaging and disposed of quickly - not so at Bosch: Here have user manuals a fixed place, do not interfere with the tool box and can be repealed for later contingencies.

The accessories are rather sparse and limited to the cordless drill 2.5 Ah battery, a quick charger, the user manual and a slot-crosshead double bit, A small set of stone drills would be desirable to be able to test the newly acquired tool immediately.

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: ergonomic

Enough space - even for older batteries

However, several sets of simple stone drills quickly accumulate in the workshop, which rarely match the desired quality in the basic equipment. If you already have a good set of drills, you will not miss the missing addition.

Even the usual quality can surprise in the first impression

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: test

New - the pitch of the torque setting

Bosch green stands for good home improvement quality and this is also reflected in the new PSB 18 LI-2 Ergonomic.

As usual we keep one perfect workmanship with amazing little and well balanced weight in the hand.

Instantly, however, a few innovations in the eye, with which Bosch takes some completely new paths. Since these prove to be beneficial, this could be a new trend set.

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: drills

Highly visible battery indicator

For many years, cordless drill drivers and cordless impact drills have a torque setting whose last position activates drilling without torque limitation. Impact drills are then followed by activation of the impact function.

Bosch now waives and equips the new PSB 18 LI-2 with a additional adjusting ring, Directly behind the lining is the usual torque setting and behind another, with the between the Functions screwing, drilling and impact drilling changed can be.

This results in an interesting possibility: If you need to change between drilling and screwing, you have to go ahead set torque limit not adjusted become. The change to the drilling function deactivates them automatically, which has an advantageous effect on the quick and multiple changes between drilling and screws.

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: test

New and well solved: the change of direction

New is also the Switching the direction of rotation And here Bosch could be groundbreaking - at least for us, the new method provides enthusiasm. Instead of the usual side switching, the direction of rotation is changed on the new PSB 18 LI-2 with a lever in front of the throttle handle.

This one is clear more convenient to reach and the fact that "lever before" stands for the Reindrehen (clockwise) and "lever back" for the Rausdrehen (left-hand rotation), makes a confusion impossible. Whether this will be the new trend that other manufacturers take over?

Nevertheless, of course, it takes a certain habit, not to interconnect with frequent changes of direction. The disadvantage is the fact that the PSP 18 LI-2 Ergonomic has no direction indicator, This is already a bit surprising with the current state of the art. The Battery indicator is available and by their deeper installation with an oblique opening from all sides clearly visible.

Finally there is a LED lighting that excites. After many testers, the new PSB 18 LI-2 Ergonomic is the only cordless screwdriver to use the Advantages of LED lighting fully exploited, The additional lighting is advantageous when working in darker corners, but firmly connected to the use of the tool.

Sometimes it is possible sensitively to use the LED without rotation of the feed, which, however, rarely equals a "light on". Not so with the new PSB from Bosch: clearly before the Lining begins to turn, the LED is already lit. and the switch is easy to hold in this position. But you really would not have to, because it lights up by itself for another 5 seconds. A fixed switch could be forgotten, so this is Follow-up time is an optimal solution.

In conclusion, it can be said that the PSB 18 LI-2 Ergonomic is absolutely convincing in theory. Apart from the missing indication of rotation everything is perfect, looks very high quality and innovations are meaningful and forward-looking implemented. These may be used for other devices and become the standard.

The new battery generation is flatter and wider

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: test

Old and new model variant

With the Ergonomic we also hold the first battery of the new generation in hand and since the PSB 18 LI-2 belongs to the Power4All family, it makes sense, the Compare batteries and check the compatibility, With 2.5 Ah, the new battery does not come with the big 4 Ah (and more) batteries from the professional sector.

From personal experience 2.5 Ah in the private sector but completely sufficient. Striking is the new flatter, but for a slightly wider design, which refers to comparisons, however, only on the base. The transition between battery and tool is the same fluent and precise as with the older battery variant.

The new batteries are accordingly also use in older deviceslike the older batteries in the new PSB 18 LI-2 Ergonomic. We also found no compatibility issues with the test with some other tools. The new battery was tested in the following devices:

  • Cordless hammer Uneo Maxx
  • Cordless drill / driver PSR 18 LI-2 (older model)
  • Cordless jigsaw PST 18 LI
  • Cordless Circular Saw PKS 18 LI
  • Cordless Saber Saw PSA 18 LI
  • Cordless hand vacuum cleaner PAS 18 LI
  • Cordless grass trimmer ART 26-18 LI

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: ergonomic

Old battery on new tool

After the test with the multiplicity of devices it is to be assumed that it also with others Tools of the Power4All family no problems in the use of the batteries gives.

New is however the charger, which now by a indicates different flashing speedif the Battery charged to 80% and thus can be used effectively again.

The location of the battery on the charger has also been changed: this is now upside down and uses the contacts that connect the battery to the tool, This is so common with almost all manufacturers and therefore not new.

The older battery variant could be but by additional contacts lying on the bottom, which made it possible many tools including battery on the charger off, We think it's a pity that this does not work anymore.

Maybe the battery was also adapted, because we can soon be happy about wireless charging at Bosch green? But we do not have any information about that and we can only hope, as many other users do.

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: cordless

New and old charger

Anyone who can live with the fact that batteries can no longer be loaded with tools can continue to use old and new batteries and also use them in all devices. The something flatter and wider design even provides a better stand of the cordless screwdriver.

There is a disadvantage, however: Since the older chargers have used the outer contacts of the batteries and these are no longer present on the new batteries, the do not charge new batteries on the old chargers, The older batteries fit easily on the new charger.

A circumstance with which one can live safely, since new devices with rechargeable battery (to our knowledge) always contain a charger.

How does the PSB 18 LI-2 Ergonomic work in practice?

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: cordless

8 x 160 mm almost sunk

With the changed design The cordless combi drill fits comfortably in your hand and the weight is very balanced. Including Schlagwerk it is not even bigger than the older cordless drill without Schlagwerk.

Accordingly, the new structure already makes sense. The additional handle is not disturbing when handling and offers heavy work additional support - Even if the grip position takes some getting used to and some would probably feel safer with a 90° angled additional handle.

Thanks to "Kickback Control", the percussion drill itself should Do not twist blocking the drill, which makes an extra handle unnecessary.

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: li-2

No problem with a 50 mm Forstner drill

In the first test, the PSB 18 LI-2 Ergonomic has, like all test wrenches, the extra large one Test screw with the dimensions 8 x 160 mm to attempt.

Although such cordless screwdrivers are not intended for, but it can be good comparisons pull, since screwdrivers are hereby quickly brought to the limit. The test device sunk our test wrenches to 110 mm in two superimposed wooden beams with 80 mm each.

The result is good and should be absolutely sufficient for all usual tasks his.

It is interesting, however, that the PSR 18 LI-2 drove the screw even deeper into the wood, although he has according to technical data on a slightly lower torque in soft screwing. But we do not want to be petty the result is convincing and the PSB has enough power when screwing.

For drilling in wood, the Ergonomic is specified with a maximum drilling diameter of 38 mm. Which form of drill is used here, is to our knowledge, no manufacturer.

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: li-2

Drilling in poured screed concrete

Therefore we try to bring the PSB 18 LI-2 Ergonomic to the limit with a 50 mm Forstner drill. We did not succeed and the tester proves to be extremely powerful. He easily pushes the 50 mm Forstner drill into the wood.

The advantage here is the large quick-release drill chuck with a maximum clamping range of 13 mmwhich also accommodates larger drills.

Also impressive is the drilling in Brick walls or - as in our test - even in concrete the cordless driller not very much. Without the usual screeching of percussion drills, the PSB 18 LI-2 Ergonomic - with its modified grip shape exactly in the drilling axis - can be pressed against the drilling surface Boreholes of 10 mm no problem.

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: ergonomic

Responds to the smallest screw heads

For larger boreholes and hard walls (concrete) but should generally be resorted to a hammer drill. When drilling with a hammer drill is always your own Pressing force crucial, which quickly leads to a heavy physical stress can lead.

Power is not everything, and even as a screwdriver, the PSB 18 LI-2 Ergonomic has to prove that it can handle its power in a sensitive way. For this we test the smallest torque level with very slim screws of 3 x 40 mm.

These have a drill bit, which makes them very easy to turn in and the extremely small head promises little torque change when it hits the wood. Our test device has no problem in first gear with it and also stops in several experiments with always the same screw-in depth. Thus, the torque setting proves absolute sensibility.

In second gear and with about 1400 rpm, understand the torque setting understandably not so fast and the little screw head is driven into the wood.

With small smears the perfect tool for drilling, screwing and impact drilling

In the test of the cordless drills PSB 18 LI-2 Ergonomic from Bosch: li-2

The Bosch PSB 18 LI-2 Ergonomic impresses with its perfect quality and very good handling, The weight is low, so it is well suited as a screwdriver in everyday applications despite the additional impact function.

As an innovation Bosch is revolutionizing the switching of the direction of rotation, No more sideways and with little hands often difficult to reach, but just before the gas concept is the required switches and can be without the grip position to change, switch very easily.

Also new and very practical is the Separation of the torque limiter from the changeover between screws, drilling and impact drilling. This makes it easy to switch between torque limiting and drilling screws without having to adjust the preset torque limit - ideal for frequent changes between drilling and screwing or working with and without torque limiting.

With a perfect handling and good performance drills the PSB 18 LI-2 Ergonomic wood, metal, plastic and with impact function also brick walls. He sunk screws with a lot Power that can be used selectively and in a controlled manner thanks to a very fine torque limitation.

Errors or quality defects did not afford the test device. Only to the missing direction of rotation indication in combination with the new direction of rotation switching we had to get used to it first.

However, the habituation phase is very short, so that the correct direction of rotation is intuitively selected at work. It is a pity that it is with the new battery generation is not more is possible that Switch off the tool including the battery on the charger, Unfortunately, the PSB 18 LI-2 Ergonomic Cordless Impact Drill slips past the perfect five stars due to these small bumps.

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Video Board: Bosch PSB18LI2 Ergonomic Combi-Drill - EXCLUSIVE DEMO