‹ All Festool 18V batteries

18V

Fits

24 Festool 18V tools + 6 moreSee them ›

Charges

25 min on the 576955, the fastest of 3Charge times ›

Specs

From Festool's own documentation

Festool · 18V platform

Festool BP18TBX4 18V 4.0Ah Tabless Compact battery

4.0Ah 72Wh 0.6kg 21700 tabless cells Fuel gauge

Festool BP 18 TBX 4 C tabless compact pack, 4.0Ah (72Wh), 0.60kg, launched April 2026. Bluetooth dust-extractor auto-start and AIRSTREAM fast charging.

Adds it to My Tools, kept on this device

Lowest price we track

£119.95at Tooled Up · + £6.95 delivery · Available to order

View at Tooled Up ›

Compare retailersTotal with delivery

Tooled Up Lowest£119.95 + £6.95 delivery · Available to order£126.90View ›

My Tool Shed£119.95 + £6.95 delivery · Available to order£126.90View ›

Prices from UK retailer feeds, updated daily.We may earn a commission

4.0AhCapacitymaker figure

72WhEnergymaker figure

0.6kgWeightmaker figure

120Wh/kgEnergy for its weightworked out

£29.99Per Ahat the lowest price we track

Other sizes in this range

Same fit, same tools. Bigger packs run longer and weigh more. Pick the size for the job.

Compare these sizes ›All Festool 18V batteries ›

ModelSizeEnergyWeightLowest pricePer Ah

BP18Li3.0C 3.0Ah 54Wh 0.4kg No price yet

BP18Li4.0HPC 4.0Ah 72Wh 0.6kg £155.95 £38.99 per Ah

BP18TBX4 This one 4.0Ah 72Wh 0.6kg £119.95 £29.99 per Ah

BP18Li5.0 5.0Ah 90Wh 0.7kg £172.95 £34.59 per Ah

BP18TBX8 8.0Ah 144Wh 1kg £199.95 £24.99 per Ah

Prices are the lowest we track at UK retailers, updated daily. Weights from Festool. Energy is Festool's figure, or worked out from volts × Ah where they don't publish one.

Full specs

From Festool's own documentation. "Not listed" where Festool doesn't publish a figure.

Voltage18V

Capacity4.0Ah

Energy72Wh

ChemistryLi-ion (cylindrical)

Cell type21700 tabless

Weight0.6kg

Size (L × W × H)Not listed

Fuel gaugeYes

ExtrasBluetooth, AIRSTREAM

Released2026

PlatformFestool 18V

Model codeBP18TBX4

Charge times

Festool's own figures, fastest first. Each charger opens its own page.

576955Rapid charger with active air cooling

25 min

£158.95 at Tooled Up ›

201136Rapid charger

32 min

£69.95 at Tooled Up ›

577019Twin rapid charger (2 at once)

32 min

£156.95 at Tooled Up ›

Festool's own figures. Festool quotes the time to "ready" (over 80%); other brands quote to full. We may earn a commission

Versions

BP18TBX4 This one, currentWhat changed from the BP18Li4.0HPC: Tabless cell version that replaces the BP 18 Li 4,0 HPC-ASI. Festool quotes charging cycles up to 49% shorter on the SCA 16.

BP18Li4.0HPC Older modelStill fits the same tools on Festool 18V.

Not sure which you have? The model code is on the label under the pack.

Kits with this battery

Bought in a kit, the packs can work out cheaper. Contents from the UK retailer listing.

All Festool 18V kits ›

18V 2xTBX4/TCL6 (2x BP 18 TBX 4 C-ASI + TCL 6) Kit

2x 4Ah · 18V

2x BP 18 TBX 4 C-ASI 4.0Ah batteries, TCL 6 charger (no case)

from £328.95

at Tooled Up · + £6.95 delivery · Available to order

View at Tooled Up ›

Compare 2 retailers

Tooled Up+ £6.95 delivery · Available to order £328.95 View ›

My Tool Shed+ £6.95 delivery · Available to order £328.95 View ›

We may earn a commission

SYS 18V 2xTBX4/TCL6DUO (2x BP 18 TBX 4 C-ASI + TCL 6 DUO, Systainer SYS3 M 187) Kit

2x 4Ah · 18V

2x BP 18 TBX 4 C-ASI 4.0Ah batteries, TCL 6 DUO charger, Systainer SYS3 M 187

from £349.95

at Tooled Up · + £6.95 delivery

View at Tooled Up ›

Compare 2 retailers

Tooled Up+ £6.95 delivery £349.95 View ›

My Tool Shed+ £6.95 delivery £349.95 View ›

We may earn a commission

SYS 18V 4xTBX4/TCL6DUO (4x BP 18 TBX 4 C-ASI + TCL 6 DUO, Systainer SYS3 M 187) Kit

4x 4Ah · 18V

4x BP 18 TBX 4 C-ASI 4.0Ah batteries, TCL 6 DUO charger, Systainer SYS3 M 187

from £549.95

at Tooled Up · Free delivery

View at Tooled Up ›

Compare 2 retailers

Tooled UpFree delivery £549.95 View ›

My Tool ShedFree delivery £549.95 View ›

We may earn a commission

Fits these tools

Every Festool 18V tool takes this pack. It won't fit other brands' tools.

All 24 Festool 18V tools ›

SDS+ Hammer Drills3 tools › Jigsaws3 tools › Drill Drivers3 tools › Reciprocating Saws2 tools › Random Orbital Sanders2 tools › Trim Routers & Edge Trimmers2 tools › Multi-Tools1 tool › Alligator & Insulation Saws1 tool › Detail & Delta Sanders1 tool › Planers1 tool › Mitre Saws1 tool › Impact Drivers1 tool › Combi Drills1 tool › Circular Saws1 tool › Angle Grinders1 tool ›

2×

Also runs 6 Festool 18V Twin (36V) tools, as a pairBigger tools that take two of these packs at once.

See them ›

4.0Ah packs from other brands

Only useful if you haven't picked a platform yet: packs don't swap between brands. Shown on neutral figures only.

Not sure which platform? ›

BatteryEnergyWeightWh per kgLowest pricePer Ah

FestoolBP18TBX4 72Wh 0.6kg 120 £119.95£29.99

BoschPROCORE18V-40 72Wh 0.52kg 140 £54.99£13.75

Bosch Green1600A011T8 72Wh 0.64kg 113 £59.95£14.99

DeWaltDCB182 72Wh 0.61kg 118 £49.95£12.49

Einhell4511396 72Wh 0.67kg 107 £36.95£9.24

HiKOKIBSL1840M 72Wh 0.56kg 129 No price yet

BP18TBX4 questions

Which tools does the BP18TBX4 fit?

It fits every Festool 18V tool, and two of them run the Festool 18V Twin (36V) tools. It won't fit other brands' tools.

What's the difference between the BP18Li4.0HPC and the BP18TBX4?

Tabless cell version that replaces the BP 18 Li 4,0 HPC-ASI. Festool quotes charging cycles up to 49% shorter on the SCA 16.

How long does the BP18TBX4 take to charge?

From Festool's own figures: 576955: 25 min, 201136: 32 min, 577019: 32 min. Festool quotes the time to "ready" (over 80%).