Key Features
High-Capacity RuntimeTwo 8.0 Ah Li-HighPower batteries give your 18 volt Festool cordless tools the kind of run time needed for heavy-duty cutting, grinding, and dust extraction work without constant battery swaps. Fast TurnaroundThe dual SCA 16 AIRSTREAM rapid chargers use active cooling before and during charging, which helps get the packs back to ready status in about 27 minutes so tools spend more time working and less time sitting. System StorageThis Festool energy set comes packed in a Systainer3, so the batteries and chargers stay organized, travel cleanly between shop and site, and tie into the rest of the Festool storage system.
Overview
The Festool 577328 SYS 18V Dual 8.0Ah and Dual SCA16 Fast Charger Energy Set is built for users who need more run time, faster charging, and cleaner organization across their cordless setup. This is a battery and charger kit designed for powering and charging Festool 18 V cordless tools. Model Number 577328. If you already own Festool Basic tools or you are trying to keep high-demand cordless tools running through longer jobs, this kit fills that gap with two 8.0 Ah battery packs, two SCA 16 rapid chargers, and a Systainer3 to keep the whole setup together.
The big story here is capacity and turnaround time. Each battery pack is rated at 8.0 Ah and 18 V, so this set is aimed squarely at tools that pull harder and run longer, including cordless angle grinders, cordless circular saws, and cordless extractors. Festool specifically positions these packs for maximum power and endurance, which matters when you are doing longer cuts, repeated grinding, or extended dust extraction on site. Instead of limping through a day with undersized batteries, you get two packs meant for serious workload.
The charging side matters just as much. The included SCA 16 AIRSTREAM rapid chargers use active air cooling before and during charging, which helps the batteries get back to ready status quickly. Festool lists about 27 minutes until ready, and that kind of turnaround changes how you work. Rotate one pack onto the charger while the other is in the tool, and you can keep a much steadier pace without building your day around charging delays.
This set is also more than just spare batteries in a box. The battery packs include Bluetooth functionality, which allows a connected Festool mobile dust extractor to start automatically when the tool is switched on. For anyone already working inside the Festool system, that is a practical feature, not a gimmick. It reduces the little stop-and-start steps that slow you down and helps keep dust control more automatic during cutting and grinding tasks.
Festool also ties these batteries into its app-based functions. In combination with the app, you can check detailed charge status and operating data such as temperature or charging cycles, and identify the battery with the lowest charge level by flashing the LED on the pack. That is useful when you have multiple batteries in rotation and do not want to waste time guessing which one is ready to go next.
Storage and transport are handled the way Festool users expect. Everything comes in a Systainer3 SYS3 M 187, and Festool notes there is room inside for a total of four battery packs and two chargers. That gives you organized storage now and room to expand later. The Systainer3 also works with previous Systainer generations and other system accessories, so this kit does not become a one-off case sitting apart from the rest of your setup.
Compatibility is broad, but not universal. Festool states these batteries are compatible with almost all Festool 18 V cordless tools, with exceptions for the ETSC 125, RTSC 400, and DTSC 400 cordless sanders, plus the CTC SYS cordless extractor. That is the kind of detail worth paying attention to before you buy. For most Festool 18 volt users, this is a strong system expansion. For those specific tools, it is not the right fit.
Who should buy it? Contractors, remodelers, carpenters, finish crews, and shop users already invested in Festool 18 volt cordless tools will get the most out of this set. It makes the most sense for anyone running higher-demand cordless tools or anyone who wants a ready-to-work battery station in one case. If your workflow depends on cordless power and you are tired of babysitting chargers or digging around for loose batteries, this kit solves a real jobsite problem.
More Power for Heavy-Duty Cordless Work
If you are feeding tools that actually work for a living, battery size matters. This kit is built around 8.0 Ah packs meant for higher-demand 18 volt tools where smaller batteries run out too fast.
- Includes two 18 V, 8.0 Ah Li-HighPower battery packs
- Festool calls them out for maximum power and maximum endurance applications
- Well suited for tools like the AGC 18 angle grinder, HKC 55 cordless circular saw, and CTC MINI or MIDI cordless extractors
Charge Fast and Keep Moving
Fast charging is only useful if it stays consistent after the batteries have been worked hard. Festool uses active cooling before and during charging to help the SCA 16 charger bring packs back online quickly.
- Includes two SCA 16 AIRSTREAM rapid chargers
- Approximate ready time is 27 minutes according to Festool
- 16 A charging current and 120 V input
Built to Fit the Festool System
This set makes the most sense when it becomes part of your broader cordless and dust extraction setup. The batteries support Bluetooth-based extractor start and the whole kit stores in a Systainer3 that connects with the rest of the system.
- Bluetooth battery packs can automatically start a connected Festool mobile dust extractor
- Systainer3 storage is compatible with previous Systainer generations and many system accessories
- The case has space for up to four battery packs and two chargers total
Keep Batteries Organized in One Place
Loose chargers and batteries are easy to lose, damage, or leave behind. Packing this battery and charger kit in one Systainer3 keeps your power supply together and ready to travel.
- Includes the SYS3 M 187 Systainer3
- Designed for clean transport from shop to jobsite
- A good fit for users adding battery support to Festool Basic tool purchases
What’s in the Box
- (2) Festool BP 18 Li 8,0 HP-ASI HighPower Battery Packs
- (2) Festool SCA 16 Rapid Chargers
- (1) Festool Systainer3 SYS3 M 187
Key Specifications
| Battery Capacity | 8.00 Ah |
|---|---|
| Voltage | 18 V |
| Charging Current | 16 A |
| Input Voltage | 120 V |
| Battery Quantity | 2 |
| Charger Quantity | 2 |
| Charge Time to Ready | 27 min |
| Weight | 12.3 lbs (5.6 kg) |
Compatibility
Battery Platform Designed for Festool 18 V cordless tools. Bluetooth Dust Extraction Bluetooth battery packs can automatically start a connected Festool mobile dust extractor when the tool is switched on. Systainer System The included Systainer3 is compatible with previous Systainer generations and many Festool system accessories. Known Exceptions Not compatible with the ETSC 125, RTSC 400, or DTSC 400 cordless sanders, or the CTC SYS cordless extractor.
Built For
CarpentryConstructionGeneral ContractingRemodelingWoodworkingJobsite ChargingWorkshop Battery RotationCordless Tool Power Supply
Pro Tip
If you are running a high-draw Festool cordless circular saw or cordless extractor, keep one 8.0 Ah pack in the tool and one on the SCA 16 charger. With the fast ready time, this set is built to work as a rotation system, not just as backup storage.
Warranty & Support
Festool states that the SCA 16 AIRSTREAM rapid chargers and all included battery packs are fully covered by Festool Service.
Tool Nut’s Take
Tool Nut’s Take
Festool 577328 SYS 18V Dual 8.0Ah and Dual SCA16 Fast Charger Energy Set for Serious Cordless Users
This is the kind of kit that makes a Festool cordless setup feel complete instead of underfed.
- Who it’s for: Festool users running higher-demand 18 volt tools in the shop or on the jobsite, especially if bare tool Basic versions are part of the plan.
- Why it stands out: You are getting two big 8.0 Ah packs, two fast chargers, Bluetooth extractor-start capability, and Systainer3 storage in one clean package.
- Worth knowing: It fits almost all Festool 18 volt cordless tools, but not the ETSC 125, RTSC 400, DTSC 400, or CTC SYS. Check those exceptions before you hit buy.
Common Questions
- What type of product is this? It is a Festool battery and charger kit for the 18 volt cordless platform, packaged in a Systainer3.
- How fast do the batteries charge? Festool lists the SCA 16 AIRSTREAM rapid charger at about 27 minutes until the battery is ready.
- Will these batteries fit all Festool 18 volt tools? They are compatible with almost all Festool 18 volt cordless tools, but not the ETSC 125, RTSC 400, DTSC 400 cordless sanders, or the CTC SYS cordless extractor.
- Can the batteries work with Festool dust extractors? Yes. Festool states the Bluetooth battery packs can automatically start a connected mobile dust extractor when the tool is switched on.
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