Key Features
Four Batteries Ready You get four 18V HighPower 5.0 Ah battery packs in one setup, which means less waiting around for a charge and more time keeping multiple cordless tools working. Dual Charging Setup The included TCL 6 DUO rapid charger handles two batteries at once, which is a real time-saver for crews already running deep in the Festool 18V platform. Battery Kit That Travels Packed in a Systainer3 SYS3 M 187, this battery and charger kit stays organized, protected, and easy to move from the van to the bench to the jobsite.
Overview
The Festool SYS 18V 4xHP5,0/TCL6DUO Energy Set is a cordless battery and charger kit built for users running Festool 18V tools across the shop and jobsite. This is a battery and charger kit designed for powering and charging Festool 18V cordless tools. Model Number 578681. If your biggest slowdown is rotating batteries between tools, this setup fixes that with four HighPower 5.0 Ah packs, a dual rapid charger, and a storage case that keeps the whole system together.
What matters here is not just the parts count. Four 18V battery packs gives you a deeper bench of power so you can keep cutting, drilling, fastening, sanding, or trimming without constantly pulling batteries off one tool to feed another. For anyone working with multiple cordless tools in a day, that means fewer interruptions and better workflow. The dual charger helps even more by charging two packs at the same time instead of making you queue them up one by one.
Festool also packages this set in a Systainer3 SYS3 M 187, which makes it more practical than buying loose batteries and a charger separately. The case keeps the battery system protected in transit, easier to stack with other Festool storage, and easier to grab when you are loading out for the day. That kind of organization matters on real jobs because batteries tend to disappear into trucks, gang boxes, and benches fast if they do not have a home.
The battery specification is straightforward and useful: these are 18V HighPower 5.0 Ah battery packs. That combination is a solid fit for a wide range of everyday cordless tool work where you want strong runtime without overcomplicating your setup. The included TCL 6 DUO rapid charger is there for one reason: keeping batteries in rotation. For crews, installers, and serious solo users, that is the difference between staying productive and waiting on the next pack.
Compatibility is one of the main reasons to buy this set. Festool positions it for all applications and 18V devices, with stated exceptions for the ETSC 125, RTSC 400, DTSC 400, and CTC SYS. That makes this energy set a platform buy, not a one-tool buy. If you are already invested in Festool cordless gear, it gives you shared power across the system instead of tying up money in single-tool battery bundles.
This setup makes the most sense for users who already know they are staying on Festool 18V. Carpenters, remodelers, finish crews, installers, cabinet guys, and shop users who run multiple cordless tools will get the most out of it. If you only have one cordless tool and light usage, it may be more battery than you need. But if battery rotation is already part of your day, the Festool SYS 18V 4xHP5,0/TCL6DUO Energy Set is the clean way to solve it.
Keep More Tools Working
This Festool battery kit is built for users who are done juggling one or two packs across an entire cordless lineup. With four batteries and a dual charger in one package, it gives you a practical way to keep your rotation moving.
- Includes (4) 18V HighPower 5.0 Ah battery packs
- Includes TCL 6 DUO rapid charger for charging two batteries at once
Built for Shop and Jobsite Organization
The charger-and-battery setup is only half the story. The Systainer storage keeps the whole power package together, which makes it easier to transport, easier to store, and harder to lose pieces between jobs.
- Packed in a Systainer3 SYS3 M 187 for organized storage
- Designed for all Festool 18V applications except the listed excluded models
What’s in the Box
- (4) Festool 18V HighPower 5.0 Ah battery packs
- (1) Festool TCL 6 DUO rapid charger
- (1) Systainer3 SYS3 M 187
Key Specifications
| Product Type | Battery and charger kit |
|---|---|
| Voltage (V) | 18 V |
| Battery Capacity (Ah) | 5.0 Ah |
| Battery Quantity | 4 |
| Charger Included | TCL 6 DUO rapid charger |
| Storage Case | Systainer3 SYS3 M 187 |
| Platform | Festool 18V cordless system |
| SKU | 578681 |
Compatibility
Battery Platform Built for Festool 18V cordless devices. Charging System Uses the included TCL 6 DUO rapid charger for charging two compatible batteries at the same time. Known Exceptions Festool states this set is for all applications and 18V devices except ETSC 125, RTSC 400, DTSC 400, and CTC SYS.
Built For
Festool 18V Platform Users General Contracting Remodeling Carpentry Woodworking Installation Work
Pro Tip
If you are running several Festool cordless tools in the same day, keep two batteries on the charger and two in circulation. That way the TCL 6 DUO is always catching up while your active tools stay fed.
Tool Nut’s Take
Tool Nut’s Take
Festool SYS 18V 4xHP5,0/TCL6DUO Energy Set for serious cordless users
The Festool SYS 18V 4xHP5,0/TCL6DUO Energy Set is the right buy when your cordless system has grown past a couple of spare packs and you need a real power plan.
- Who it’s for: Pros and committed users already invested in Festool 18V tools who want more runtime, faster battery rotation, and cleaner storage.
- Why it stands out: Four 5.0 Ah batteries plus a dual rapid charger is a legit productivity upgrade, not just an accessory bundle.
- Worth knowing: Compatibility is broad across the Festool 18V system, but it is not universal. Festool lists a few exceptions, so check those if you own the sanders or CTC SYS called out above.
Common Questions
- What kind of product is this? This is a Festool battery and charger kit for the 18V cordless platform.
- What batteries are included? The set includes four 18V HighPower 5.0 Ah battery packs.
- Does it include a charger? Yes. It includes the Festool TCL 6 DUO rapid charger.
- Does it work with every Festool 18V device? Festool states it is for all applications and 18V devices except ETSC 125, RTSC 400, DTSC 400, and CTC SYS.
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