US models and electrical market

How to choose the correct cordless-tool battery charger

Match the exact battery platform, model and charging workflow before comparing standard, rapid, sequential and simultaneous chargers.

By Etrenank Research · Published 2026-09-05 00:00:00 UTC

Start with the battery, not the charger name

A charger is correct only when its official documentation supports the exact battery family and model. Matching the brand or a voltage printed on the housing is not enough. DeWalt lists DCB115 in its compatible battery-and-charger documentation [1], while DCB118 explicitly supports 20V MAX and 20V/60V MAX FLEXVOLT packs [2]. Makita DC18RC and DC18RD are 18V LXT chargers [3] [4]. Milwaukee separates M12-only and mixed M12/M18 chargers from its M18-only Super Charger.

The eight reviewed US charger records

Model	Supported catalog systems	Documented charging behavior
DeWalt DCB115	20V MAX and FLEXVOLT	Compatible charger; confirm the exact pack in the manufacturer table [1]
DeWalt DCB118	20V MAX and FLEXVOLT	Single-position 8A fast charger with internal fan [2]
Makita DC18RC	18V LXT	One battery; Rapid Optimum communication and fan cooling [3]
Makita DC18RD	18V LXT	Two batteries simultaneously, with two cooling fans [4]
Milwaukee 48-59-2401	M12	M12-only standard charger [5]
Milwaukee 48-59-1812	M12 and M18	Standard, sequential charging [6]
Milwaukee 48-59-1808	M12 and M18	Rapid, sequential charging [7]
Milwaukee 48-59-1815	M18 only	Two M18 batteries simultaneously with adaptive power distribution [8]

One bay, sequential and simultaneous are different

A two-position charger does not necessarily charge two packs at once. Milwaukee states that 48-59-1812 and 48-59-1808 charge sequentially: the second inserted pack waits until the first is complete [6] [7]. Makita DC18RD charges two supported LXT packs simultaneously [4]. Milwaukee 48-59-1815 also charges two simultaneously, but only within M18 [8]. Count how many packs must be ready together before paying for more charging positions.

Read every time claim with its conditions

Charge time changes with the exact pack, its capacity and temperature, its starting state, and the charger. Makita publishes 25, 30, 40, 45 and 55-minute Rapid Optimum times for named 2.0Ah through 6.0Ah LXT packs on DC18RC, and equivalent simultaneous times for pairs on DC18RD [3] [4]. Milwaukee's headline Super Charger claims are to 80%, including 15 minutes for FORGE XC6.0 and 35 minutes for FORGE XC8.0 or HD12.0 [8]. Those are not universal empty-to-full times.

A practical selection sequence

Write down each complete battery model and its US-market platform.
Verify every pack in the charger's official product page or manual.
Choose one-pack, sequential or simultaneous behavior from the real battery queue.
Compare pack-specific charge times using the same endpoint.
Confirm the charger's regional input and plug before travel or import use.
Follow temperature, fault and ventilation instructions rather than bypassing a delay.

Etrenank does not rank one charger as universally best. The correct choice is the documented charger that supports every intended pack and fits the number of batteries that must turn around together.