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Milwaukee 48-59-1808 vs 48-59-1806: Which Charging Setup Fits?

Choose the 48-59-1808 for mixed M12/M18 charging; the selected 48-59-1808NNO offer comes in opened original or alternate non-retail packaging. Choose the 48-59-1806 to queue up to six M18 packs with a skip button. Both charge sequentially, so more bays do not mean simultaneous charging.

Published by Pickoryx · Published 2026-10-08

Source checked 2026-10-08 07:43 UTC

Products compared

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The buying question

Do you need M12 compatibility, or room to queue several M18 packs?

The 48-59-1808 serves both battery families; the 48-59-1806 provides a larger M18-only queue with a skip control.

Quick verdict

When to skip: You need this single unit to charge multiple packs simultaneously.
When the recommendation changes
  • You add M12 tools to an M18-only collection.
  • You need multiple packs charging simultaneously rather than waiting in sequence.
  • The seller’s package condition, returns or warranty terms do not meet your requirements.

The differences that matter

Supported Battery Platforms

Milwaukee 48-59-1808 Rapid Charger (48-59-1808NNO, opened or non-retail packaging)

Milwaukee M12 and M18 lithium-ion packs[1, 3]

Milwaukee 48-59-1806 M18 Six Pack Sequential Charger

Milwaukee M18 lithium-ion packs only[2]

What this changes: Choose the 48-59-1808 for a mixed M12/M18 collection. The 48-59-1806 fits an M18-only charging job; adding more bays does not add M12 compatibility.[1, 2]

The better fit depends on your priorities

Inserted Pack Queue And Skip Controls

Milwaukee 48-59-1808 Rapid Charger (48-59-1808NNO, opened or non-retail packaging)

Two inserted packs charge in sequence; the second starts after the first finishes. Separate M12 and M18 bays.[1, 3]

Milwaukee 48-59-1806 M18 Six Pack Sequential Charger

Up to six M18 packs charge sequentially in counter-clockwise rotation; a skip button moves to the next pack.[2, 4]

What this changes: For several M18 packs, the 48-59-1806 lets you load a queue and redirect it with the skip button. Its six bays are waiting positions, not six simultaneous charging channels.[1, 2, 4]

The better fit depends on your priorities

Best for your routine

Several M18 packs to queue before starting

Best fit: Milwaukee 48-59-1806 M18 Six Pack Sequential Charger

Based on listed features, not comparative testing.

The 48-59-1806 offers six M18 positions and a skip control. You trade away M12 compatibility, not the need to wait for sequential charging.

View Milwaukee 48-59-1806 M18 Six Pack Sequential Charger on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

Compare the actual offers on equivalent condition and seller terms. Pay for the battery compatibility or queue you will use, rather than assuming a larger bay count buys simultaneous charging.

There is insufficient price history here for a purchase-timing recommendation.

Limitations

  • The selected 48-59-1808NNO listing allows opened original packaging in imperfect condition or alternate non-retail packaging. Verify the seller’s condition, contents, return terms and warranty eligibility; this comparison does not establish standard retail warranty coverage.
  • No hands-on comparison or matched charge-time test was performed. The Rapid name and bay count do not establish how much sooner your particular set of packs will be ready.
  • Long-term reliability and noise are not ranked.

Questions shoppers ask

How do I move past a pack on the six-pack charger?

The 48-59-1806 manual says to press the skip button to move to the next pack in its counter-clockwise sequence. Use that documented control when you want the queue to advance.

Does owning only M18 tools settle the choice?

No. Both accept M18, so the remaining question is whether you want to load several packs at once for sequential charging. The six-pack model suits that workflow; M12 compatibility alone gives an M18-only owner no immediate benefit.

Methodology and sources

Compared battery-family support and documented queue operation; did not treat either as a measured charge-time advantage.

Research assistance organized the documented differences and checked source references.

View 4 sources
  1. 1.48-59-1808 operator’s manualMilwaukee Tool · Official specifications · Source checked 2026-10-08 07:38 UTC
    Evidence used on this page
    • Pages 1, 3–4; specifications, functional diagram, charger operation: Identifies 48-59-1808; M12/M18 compatibility, separate bay shapes and sequential operation. Page 3 diagram visually checked.
  2. 2.M18 charger operator’s manual including 48-59-1806Milwaukee Tool · Official specifications · Source checked 2026-10-08 07:38 UTC
    Evidence used on this page
    • Page 4, How to Charge the Battery Pack and Charger Operation: M18-only warning; exact 48-59-1806 six-pack counter-clockwise sequence and skip-button instruction.
  3. 3.M18 & M12 Rapid Charger, 48-59-1808Milwaukee Tool · Official specifications · Source checked 2026-10-08 07:38 UTC
    Evidence used on this page
    • Product Overview and sequential-charging bullet: Official model page confirms M12/M18 acceptance and second-inserted-pack charging after the first is full.
  4. 4.M18 Six Pack Sequential Charger, 48-59-1806Milwaukee Tool · Official specifications · Source checked 2026-10-08 07:38 UTC
    Evidence used on this page
    • Product Overview; Charges up to Six Batteries Sequentially: Official exact-model page confirms six-pack sequential design.

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