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Milwaukee 18V to Kobalt 24V Battery Adapter

Milwaukee 18V to Kobalt 24V Battery Adapter

5(1 rating)

Best price now

$36.99at Power Tools AdaptersChecked Nov 11

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Price facts

  • Last seen at $36.99 at Power Tools Adapters on Nov 11.

Our take on the Milwaukee 18V to Kobalt 24V Battery Adapter

A battery adapter that lets Milwaukee M18 18V packs run Kobalt 24V cordless tools. A built-in DC-DC converter steps the 18V input up to the voltage a fully charged 24V pack would supply, so the tool sees what it expects. It carries a BMS and is rated 55A continuous with 100A peaks, which covers most drills, drivers and saws but not the heaviest high-draw tools. It suits someone already on the M18 platform who wants to use a few Kobalt tools without buying a second battery system.

Best forM18 owners with a few Kobalt 24V toolsPeople avoiding a second battery platformLight to medium-duty drilling and drivingOccasional use of Kobalt tools around the house
Pros
  • Runs Kobalt 24V tools from M18 packs
  • DC-DC converter holds output near a full 24V pack
  • Built-in BMS protection electronics
  • Copper terminals for steady current
  • Compact and light at 142 g
Cons
  • Not a native 24V pack, so runtime and power differ
  • 55A continuous limit rules out the most demanding tools
  • 3D-printed tool-side housing looks less finished than molded plastic
  • No USB port or extra features
  • One-year warranty only

Milwaukee 18V to Kobalt 24V Battery Adapter prices at every store

  • Power Tools AdaptersNew

    In stockShips from Canada · duties may applyReturn policy

    $36.99Checked Nov 11
    Visit Power Tools Adapters

About the Milwaukee 18V to Kobalt 24V Battery Adapter

This adapter lets a Milwaukee M18 battery power Kobalt 24V cordless tools. The M18 battery is 18V and Kobalt 24V tools expect 24V. A DC-DC converter inside the adapter holds the output where a fully charged 24V battery would sit. It works in one direction only: Milwaukee batteries powering Kobalt tools.

The battery side of the housing is injection-molded ABS, and the tool side is 3D-printed ABS. The contacts are copper. Built-in battery protection electronics (BMS) cut power before the battery is drained too far.

Use a battery of at least 3 Ah; 4 Ah or more is better. A smaller battery can sag under the heavier draw until its own protection cuts out before it is empty. Some Kobalt 24V angle grinders may need a short restart because of the delayed output protection. Turn the switch on briefly, wait about 3 seconds, then turn it on again. Most drill-style tools do not need this step.

Battery
Milwaukee M18 (Lithium-Ion), 18V
Compatible tools
Kobalt 24V (Lithium-Ion)
Direction
Milwaukee battery to Kobalt tool only
Housing
ABS (injection-molded battery side, 3D-printed tool side)
Terminals
Copper
Current rating
55A continuous; 100A peak at 18VDC for up to 2 seconds
Power
1188 W continuous at 21.6V nominal
Protection
Built-in BMS
Recommended battery
3 Ah minimum; 4 Ah or more is better
USB port
No
Charging
Cannot charge batteries; remove the battery before charging
Weight
142 g (5.0 oz / 0.31 lb)
Colors
Red, Black
Operating temperature
-10 °C to 50 °C (14 °F to 122 °F)
Operating humidity
5–95% RH
In the box
Battery adapter
Warranty
12 months

Questions and answers

Does it really deliver 24V to the tool?
A DC-DC converter inside raises the 18V input to the level a fully charged 24V Kobalt pack would supply. The tool runs at that voltage rather than at 18V.
Which batteries and tools does it fit?
It takes Milwaukee M18 lithium-ion packs and runs Kobalt 24V lithium-ion tools sold at Lowe's. It does not fit other Milwaukee lines or other brands' tools.
Can it handle a circular saw or heavy tool?
It is rated 55A continuous and 100A peak for up to 2 seconds. That covers most drills, drivers and light saws, but the most power-hungry Kobalt tools will push past that.
Will runtime match a real Kobalt 24V battery?
No. Runtime depends on the M18 pack you use, and the converter adds some loss. Expect shorter runs than a Kobalt pack of similar capacity.
What is in the box?
The battery adapter only. Batteries and tools are not included.
How long is the warranty?
Twelve months from the delivery date.
Where is the Milwaukee 18V to Kobalt 24V Battery Adapter cheapest?
At Power Tools Adapters, for $36.99, as of our latest check.
What do buyers say about the Milwaukee 18V to Kobalt 24V Battery Adapter?
Rated 5 out of 5 from 1 ratings.

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