Bosch just launched an entire line of new 18V “EXPERT” series Li-ion cordless power tool batteries, and that’s not all – they also launched new fast chargers.
USA availability was announced in early 2026, with an new and updated information provided at the end of this post.
The first thing you’ll notice is that these are all “EXPERT 18V” batteries. Shown here is the 15Ah battery, model EXBA18V-150.
Bosch says that these feature the “latest 5Ah cell for maximum power of up to 2400 W.”
Bosch says that their new 8Ah battery, EXBA18V-80, can deliver the same power level, thanks to tabless Li-ion cell design.
They didn’t describe the 15Ah battery in the same manner, suggesting that not all Expert series batteries feature tabless cells.
This is the Bosch 18V 5.5Ah battery, model EXBA18V-55. It’s described as having high power cells that deliver up to 2000 W of maximum power.
The 4Ah battery, model EXBA18V-40, is said to have high power tabless cells, and can also deliver up to 2000 W.
Bosch says that the new Expert 18V 4Ah battery delivers up to 2X the maximum power compared to their GBA 18V 4.0Ah battery. It’s not clear if the comparison is to their older 4Ah battery or newer Core18V compact 4Ah battery.
The batteries are joined by a Bosch Expert 18V dual port battery charger, EXAL18V2-320.
This charger can fully recharge two of the 8Ah battery in 39 minutes. It’s simultaneous charger with up to 16A of charging speed per bay.
The new charger is actively cooled and can fit within a new customized L-Boxx that also has slots for Bosch 18V batteries.
This new charger, with the model number, GAL 12V/18V-80, suggesting it can also recharge Bosch 12V batteries, can recharge at 8A.
They also have a new single bay high speed charger, EXAL18V-160, that matches the speed of the dual port charger.
It can also recharge at up to 16A, and fully charge an Expert 8Ah battery in 39 minutes.
There are 3 charging modes – standard, power boost, and long life.
It’s difficult to read, but it looks like Bosch’s new chargers can hasten the charging times for some of their older 18V batteries and not just the new Expert series packs.
At this time it’s not clear whether the new Bosch Expert 18V batteries are replacing their Core18V batteries, or why it seems some of them have tabless Li-ion cells but not the others.
Although the geometries and look very different, Bosch says that their new Expert batteries are compatible with Bosch 18V cordless power tools as well as cross-brand AmpShare tools and accessories.
Saying that the new batteries look different is definitely an understatement – I’d say that Bosch dramatically updated the look of their new 18V batteries, from the overall shape to the unlatch button.
The new batteries are said to feature a 5-LED charge status indicator, which sounds convenient.
From what I can tell, there are two power or performance tiers here – one with the compact tabless cell 4Ah battery and 5.5Ah battery, and another with the tabless cell 8Ah battery and 15Ah battery.
As the 5-cell 4Ah battery is said to deliver the same max power as the 10-cell 5.5Ah battery, and the 10-cell 8Ah battery is said to deliver the same max power as the 15-cell 15Ah battery, it does seem like Bosch went with different “high power” and “high power tabless” Li-ion cell technologies here.
USA details have not yet been announced; the Expert line will be “coming soon” to Europe.
Bosch Expert 2026 Update
Bosch has announced that their EXPERT 18V Li-ion batteries feature tabless cell technologies, allowing for higher current flow and efficiency.
They have a blanket statement on the main product sheet, saying that EXPERT are the best batteries and chargers they have ever made, but it’s still not clear whether all of the EXPERT batteries feature tabless Li-ion cell technology.
Bosch added that EXPERT 18V batteries feature an upgraded housing, with the reinforced shell receiving improved impact, moisture, and dust resistance.
Following is an updated summary with battery pack sizes and performance claims.
EXBA18V-40: 4Ah, up to 2000W max power, up to 2X max power of previous 4Ah battery
EXBA18V-55: 5.5Ah, up to 2000W max power, up to 2X max power of previous 4Ah battery
EXBA18V-80: 8Ah, up to 2400W max power, up to 120% more runtime than previous 4Ah battery
EXBA18V-150: 15Ah, up to 2400W max power, up to 280% more runtime than previous 4Ah battery
The new 4Ah and 8Ah batteries are specifically listed as featuring tabless cells, but the same claims are not made for the 5.5Ah and 15Ah batteries, despite Bosch’s blanket claims for the EXPERT line.
A Bosch EXPERT 18V 6Ah battery has appeared at USA retailers.
EXBA18V-60: 6Ah, up to 75% longer runtime than CORE18V 4Ah battery
USA pricing is now available for several Bosch EXPERT battery sizes:
- Buy the 4Ah battery at Acme Tools ($149 launch price)
- Buy the 6Ah battery at Acme Tools ($159 launch price)
- Buy the 8Ah battery at Acme Tools ($199 launch price)
The 15Ah battery does NOT appear to be launching in the USA at this time.
It remains unclear whether these new batteries will be replacing any of Bosch’s existing 18V cordless power tool batteries, and whether they will be included in new kits.
