The Milwaukee 48-59-1809 M18 PACKOUT Six Bay Rapid Charger is a multi-bay battery charger built for users who need to keep several Milwaukee cordless tools running through the day. This is a battery charger designed for charging and managing multiple M18 battery packs on the jobsite or in the shop. Model Number: 48-59-1809. If you are already invested in Milwaukee M18 tools, this charger is about cutting battery downtime, reducing charger clutter, and making your charging setup easier to move.

What makes this unit different from a basic charger is how it handles volume. It has six M18 charging bays, charges two batteries simultaneously at a rapid charge rate, and then automatically advances to the next two batteries. Milwaukee states it can charge six M18 XC 5.0 batteries in 3 hours. In real terms, that is the kind of setup that makes sense for contractors, service crews, and anyone rotating packs across drills, impact drivers, saws, rotary hammers, lights, and other M18 gear instead of dealing with a row of single chargers spread across a bench.

The charger is also built around Milwaukee's PACKOUT system, which matters if your gear already travels in a stack. PACKOUT compatibility means the charger is not just something that sits in the corner of the shop. You can integrate it into your storage setup for transport and storage, or mount it with compatible PACKOUT mounting components. Milwaukee also built in a carrying handle, so even when it is not locked into a PACKOUT setup, it is still easier to move from van to site to mechanical room without wrestling with loose chargers and cords.

On the charging side, REDLINK Intelligence is doing the work behind the scenes. Milwaukee says the system adjusts charge rates based on battery type and temperature to help minimize charge time while supporting battery life. That matters for users charging different M18 packs throughout the day, especially when batteries are coming off tools warm. Instead of a one-speed charging approach, the charger is set up to respond to what the battery needs.

Jobsite practicality is where this charger earns its space. The batteries latch securely to the charger, there is cord management built in with a cord wrap clip, and there are storage caddies on both sides for phones or other small electronics while you use the USB-A port. That USB-A output is rated at 5V/2.1A, which gives you a clean way to top off a phone, headlight, or tablet without adding another adapter to the mix. It is a small feature, but on a busy site it keeps charging centralized instead of turning your gang box or trailer into a mess of cords.

Compatibility is straightforward and important here: this charger is for the Milwaukee M18 battery platform and is compatible with all M18 batteries. Power comes from a corded 120V AC source, so this is meant for dependable charging at a shop, trailer, site power station, or other standard outlet. If your cordless lineup is mostly or entirely M18, the charger fits right into that system without needing adapters or special battery exceptions.

From a build standpoint, Milwaukee lists a polycarbonate construction, and the overall size is substantial enough to hold six packs without turning into a giant bench hog. At 15.1 inches long, 9.76 inches wide, and 12.12 inches high, it is clearly designed to be portable but still stable. The listed weight of 7.91 pounds reflects the charger itself, which is reasonable for something meant to carry multiple batteries and integrate with PACKOUT.

Who should buy it? This one is best for pros and serious users who burn through multiple M18 batteries in a day: electricians, remodelers, general contractors, mechanical trades, punch crews, shop techs, and anyone running a truck or trailer full of Milwaukee cordless tools. If you only own one or two batteries, this is more charger than you need. If you are managing a full M18 setup and tired of swapping packs between single chargers, this is the cleaner and faster answer.

Milwaukee 48-59-1809 M18 PACKOUT Six Bay Rapid Charger for crews that actually burn through batteries

This is the charger you buy when single-bay chargers have officially become part of the problem.

• Who it's for: Contractors, service techs, and serious Milwaukee users managing a full lineup of M18 tools and multiple battery packs every day.
• Why it stands out: Six-bay capacity, two-at-a-time rapid charging, PACKOUT integration, and a USB-A port make it a real jobsite charging station instead of just another charger on the shelf.
• Worth knowing: It is a premium charger built for volume. If you only rotate a couple of batteries, this is overkill. If you run a full M18 setup, it makes a lot of sense fast.

• Does this charger work with all Milwaukee M18 batteries? Yes. Milwaukee lists it as compatible with all M18 batteries.
• How many batteries does it charge at one time? It holds six M18 batteries and rapid-charges two simultaneously before automatically moving to the next pair.
• Can it be used with PACKOUT storage? Yes. It is PACKOUT compatible and can be integrated with Milwaukee PACKOUT modular storage components.
• Does it have a port for charging a phone or headlight? Yes. It includes one USB-A port rated at 5V/2.1A (10W).