The Milwaukee M18 Six Pack Sequential Charger, model 48-59-1806, is a multi-bay battery charger built for users running several M18 packs through the day. This is a battery charger designed for charging and organizing Milwaukee M18 batteries. If you already own multiple M18 tools, this charger matters because it puts six batteries in one spot, cuts down on clutter, and keeps packs rotating without needing a pile of separate chargers.

This charger uses sequential charging, meaning it charges one battery at a time instead of charging all bays at once. That matters if your main goal is battery management and bench organization more than maximum speed across every bay. For a contractor, service tech, or shop that comes back with a stack of drained batteries, being able to load six packs and let the charger work through them is a real time-saver. Milwaukee states it will charge M18 compact batteries in 30 minutes and M18 XC batteries in 60 minutes.

From a design standpoint, Milwaukee kept this one practical. The body is compact for a six-bay unit, and the integrated carrying handle makes it easier to move from shelf to van to job trailer. The housing is made from polycarbonate, which is a smart choice for a charger that is going to get handled, bumped, and mounted instead of sitting untouched on a clean countertop. At 7.8 inches long, 12.1 inches wide, and 8.4 inches high, it is large enough to manage a battery fleet without becoming a space hog.

Jobsite practicality is where this charger makes the most sense. Milwaukee includes integrated hang holes for vertical mounting, so you can get it up off the bench and keep your charging station cleaner. The pass-through plug is another feature that sounds small until outlet space gets tight. On a crowded bench, in a gang box area, or inside a trailer, saving an outlet can be the difference between a clean setup and a power-strip mess.

It is also built around the broader M18 battery platform. According to the product information and product imagery, it charges all M18 batteries. That makes the Milwaukee M18 Six Pack Sequential Charger a strong fit if you are already invested in the M18 line and want one central charging station for drills, impacts, recip saws, lights, and other cordless tools on the same platform. Instead of matching different chargers to different packs, you can keep one dedicated M18 charger station ready to go.

The charge interface includes an on-board charge indicator and a skip button shown in the product images. That is useful in the real world because not every battery in line has the same priority. If you need a certain pack next, being able to select the desired battery to charge is more useful than just waiting your turn and hoping the right battery comes up fast enough.

This is not the charger to buy if your top priority is simultaneous multi-battery charging. Milwaukee's own comparison material makes clear that this is the standard charger version and that its charging style is sequential. But if your priority is managing a pile of M18 batteries in one footprint, keeping the charging area organized, and reducing the daily shuffle of packs between individual chargers, this unit is a solid, straightforward answer.

Who should buy it? Crews running multiple M18 tools, shop owners with several packs in circulation, and serious DIY users deep into the Milwaukee cordless system. If you only own one or two batteries, it is more charger than you need. If you own six and are tired of playing musical chairs with chargers, this one starts to make a lot of sense.

Milwaukee M18 Six Pack Sequential Charger for crews with too many batteries for single-bay charging

The Milwaukee M18 Six Pack Sequential Charger is the kind of charger that earns its keep when your battery pile has officially outgrown the basic setup.

• Who it's for: Pros and serious DIY users already invested in Milwaukee M18 tools who keep multiple batteries in daily rotation.
• Why it stands out: Six bays, compact footprint, vertical mounting, a pass-through plug, and charge management features make it more of a battery station than just another charger.
• Worth knowing: It is a sequential charger, not a simultaneous rapid charger. That is not a flaw, just the honest reason it fits organization-focused users better than speed-first users.

• Does this charger charge all six batteries at the same time? No. The Milwaukee 48-59-1806 uses sequential charging, which means it charges one battery at a time.
• What battery platform does it work with? It is designed for the Milwaukee M18 battery system and Milwaukee states it charges all M18 batteries.
• How fast does it charge? Milwaukee lists charge times of 30 minutes for M18 compact batteries and 60 minutes for M18 XC batteries.
• Can it be mounted instead of sitting on a bench? Yes. Milwaukee lists integrated hang holes for vertical mounting.