The Milwaukee M18 Six Bay Daisy Chain Rapid Charger, model 48-59-1817, is a multi-bay battery charger built for crews running a lot of M18 cordless tools. This is a battery charger designed for high-volume M18 battery charging in shops, service vans, trailers, and jobsites. If your day gets slowed down by dead packs, scattered chargers, or limited outlet space, this charger solves a real problem by letting you manage up to six batteries in one compact charging station.

What makes this unit different is how it handles both daytime and overnight charging. In rapid daytime mode, it charges two batteries simultaneously at a rapid charge rate, which is the part most users will care about when they need packs back in rotation fast. For overnight charging, the charger can be daisy-chained with up to 10 units so a crew can charge up to 60 M18 battery packs overnight on a single 15-amp circuit. That is a practical advantage for shops and fleet setups where outlet capacity is limited but battery demand is high.

The design is aimed at real transport and storage, not just bench-top use. Milwaukee built in a folding carry handle so it is easier to grab and move from the shop to the truck or trailer. The integrated cord wrap keeps the setup cleaner when the charger is being stored or transported. At 14.5 inches long, 9.6 inches wide, and 7.1 inches high, it has a footprint that is substantial enough to manage six packs without being awkward to stage on shelves, in vans, or on a PACKOUT setup.

PACKOUT compatibility is a big part of why this charger stands out. Instead of being just another charger sitting loose on a shelf, it can be integrated into the Milwaukee PACKOUT modular storage system and used with PACKOUT wall plates for more organized shop or mobile storage. For contractors already invested in PACKOUT, that means the charger fits into the same system as cases, organizers, and tool storage instead of becoming a separate piece of gear you have to work around.

This charger is also built around the full M18 battery platform. It is compatible with all M18 batteries, so you are not locked into a narrow battery size or generation. That matters for mixed fleets where crews may be running compact packs for service work, higher-capacity packs for heavy-use tools, or a combination of both. One charger platform that handles the whole M18 lineup simplifies battery management and reduces charger clutter.

From a jobsite practicality standpoint, the charge indicators and dual mode setup help users understand what the charger is doing without guesswork. The charger also communicates with the battery pack to help optimize performance, which is important when you are cycling batteries constantly across a crew. The charger is powered from a standard 120V electrical outlet, so deployment is straightforward in shops, garages, trailers, and temporary power setups.

The 7.9-pound weight tells you this is not a tiny countertop charger, but it is still portable enough for shop-to-mobile use. That balance is the point. Milwaukee is clearly targeting contractors, service crews, and fleet users who need something more capable than a basic single-bay or sequential charger, but who still need to move the charger as work shifts between locations.

Who should buy it? This charger makes the most sense for pros already on the Milwaukee M18 platform, especially general contractors, electrical crews, plumbers, HVAC techs, facility maintenance teams, and mobile service operations with multiple batteries in daily rotation. If you only keep a couple of batteries on hand, it is more charger than you need. If you are managing a stack of M18 packs every day, the Milwaukee M18 Six Bay Daisy Chain Rapid Charger is the kind of tool support gear that saves time without much drama, which is exactly what a charger should do.

Milwaukee M18 Six Bay Daisy Chain Rapid Charger for crews that actually burn through batteries

This is the charger you buy when single-bay charging stops being a system and starts being a headache.

• Who it's for: Contractors, service techs, and shop managers already deep into the M18 platform and rotating a lot of batteries every day.
• Why it stands out: Dual charge modes, two-battery rapid charging, daisy-chain capability, and PACKOUT compatibility make it much more useful than a basic shop charger.
• Worth knowing: It is a serious charging station, not a casual add-on. If you only run a couple of batteries, it is overkill. If your crew is constantly waiting on packs, it makes a lot of sense.

• What batteries does this charger work with? It is compatible with all Milwaukee M18 batteries.
• How many batteries can it charge at once? It manages six battery bays and charges two batteries simultaneously at a rapid charge rate.
• Can multiple chargers be linked together? Yes. Up to 10 chargers can be daisy-chained together for overnight charging on a single 15A circuit.
• Does it work with PACKOUT? Yes. The charger is fully compatible with the Milwaukee PACKOUT modular storage system.