Description
Festool 577709 Energy Set SYS 18V — BOLTON SKU 54847.
About the Festool 577709 Energy Set SYS 18V
Festool order number 577709 is the 4×5,0 / TCL 6 DUO configuration of the Energy Set SYS 18V. It supplies four battery packs of 5.0 Ah each at 18.00 V, together with one TCL 6 DUO charger. The DUO designation is the point of this variant: the charger has two charging channels rated at 6.0 A each, so two packs can be brought back up at once rather than queued one behind the other. Four packs against a two-bay charger is a deliberate ratio — it allows two batteries to be in use while two are charging, which is what sustains continuous running across a shift without the charger becoming the bottleneck. The charger is the 230 V standard version with a rated input voltage range of 220.00–240.00 V.
Key specifications
| Brand | Festool |
|---|---|
| Order number | 577709 |
| Configuration | 4x 5,0 / TCL 6 DUO |
| Battery packs supplied | 4 |
| Battery capacity | 5.0 Ah each |
| Battery voltage | 18.00 V |
| Charger | TCL 6 DUO |
| Charging current | 2 x 6.0 A |
| Charger standard | 230 V |
| Rated input voltage | 220.00–240.00 V |
Typical applications
The Festool 577709 Energy technical component set, four packs against two bays, is bought where more than one 18 V machine is in service at the same time — a two-person crew, or one operator alternating between a drill and a saw — and where downtime waiting on a charger is the constraint rather than raw capacity. The 5.0 Ah packs are the mid-capacity option, lighter in the hand than 8.0 Ah packs and better suited to tools held at arm’s length or overhead. As with any 230 V-standard charger, confirm the site mains supply falls within 220–240 V before ordering.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).


























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