Different cordless yard tool battery shapes and connectors

Can You Use a Battery From a Different Brand?

ByKen

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The question behind can you use battery from different brand tool is whether a pack made for one brand will run another brand’s tool. The short answer from the manufacturer pages we opened is that they do not give a general yes. Each page covers its own brand’s tools. EGO says its batteries fit all EGO tools, DeWalt says most of its 20V batteries work in its 18V tools through an adapter, and Husqvarna describes one battery across a named alliance of brands. Anything outside those statements is not covered by a source here. Read each statement as a limit on scope, not as permission to try a battery in a new tool.

Quick answer

  • Not as a general rule. The sources we opened give fit statements only for each maker’s own tools, plus one cross-brand alliance.
  • EGO says any size EGO POWER+ battery works with any EGO POWER+ tool. That is a single-brand statement.
  • Husqvarna’s POWER FOR ALL battery works across an alliance of brands. The page names Bosch and Husqvarna Aspire, and it does not give a full brand list.
  • For any other brand pair, the sources do not say. Check the maker’s compatibility page before you assume a fit.

Safety notes for using a battery on a tool

A battery that fits physically is not the same as a battery the maker has approved for that tool. Follow the maker’s guidance on what to use, charge and store.

  • Use only batteries the maker names. DeWalt says: “Use only authentic DEWALT batteries for best performance and safe compatibility with DEWALT tools and chargers.”
  • Do not use a damaged pack. DeWalt says: “Do not use batteries with visible damage or cracks.”
  • Store the pack in a cool, dry place. OSHA’s workplace guidance lists “Storing batteries in cool, dry locations.” EPA says: “It is best to store Li-ion batteries at room temperature.”

EPA also says: “The swelling indicates damage to the battery and is a potential fire hazard.” A swollen pack should be taken out of use, and the maker should be contacted.

Do not open a pack or attempt a repair, and do not force a pack into a tool that its maker does not list.

What each maker’s page says

The table lists only the statements that appear on the pages we opened. Where a page is silent, the table says so. The table is a summary, and it leaves out the exact wording, so read the statement on the page before you rely on it.

Maker What the page says about fit Source What it does not cover
EGO Its ARC Lithium batteries fit all EGO POWER+ tools and chargers, and any size battery works with any tool in the line. EGO battery page Tools from other brands
DeWalt Most 20V batteries work with the DCA1820 adapter in 18V tools. The page excludes 20V MAX and lists exceptions. DeWalt adapter support page Tools from other brands, and the exceptions list
Husqvarna (UK page) One POWER FOR ALL battery works within the whole alliance, which the page says includes Bosch and Husqvarna Aspire. Husqvarna UK POWER FOR ALL page Brands outside the alliance; no full brand list on the page
Ryobi and other makers The Ryobi battery pages we opened state no cross-brand rule. Not cited Not covered by the sources

The DeWalt adapter: one brand, several exceptions

DeWalt’s adapter page shows that even inside one brand, fit depends on a list. The page says: “DCA1820 will fit most 18V DEWALT tools; the exceptions are listed below.” It also says “Most DEWALT 20V batteries work with DCA1820.” and adds “(Excluding 20V Max).” for the battery side.

The exceptions are specific. The page says the adapter should not be used with certain premium 20V packs in two compact drills, and it describes a case where “the door will not close on the battery and adapter” on three named models. A 20V battery and an 18V tool can share a voltage on paper and still fall outside the maker’s list, which is why the list matters more than the number on the pack.

Husqvarna’s alliance: the one cross-brand statement

Husqvarna’s UK page describes “The 18V POWER FOR ALL battery” as one battery with “compatibility across 10+ brands.” The page says the battery offers “compatibility within the whole POWER FOR ALL ALLIANCE,” which it calls “one of the largest multi-brand 18V battery systems of leading manufacturers worldwide.” It names Bosch and Husqvarna Aspire as alliance members.

This is a UK locale page. The US pages we opened do not cover the alliance, so this is the only source for the cross-brand statement, and the page does not give a full member list. A brand that the page does not name is not covered by this source. Treat the alliance as a platform rule, not a voltage rule, and check the tool’s brand against the named members.

EGO: a single-brand rule

EGO’s battery page says that all of its ARC Lithium batteries are compatible with its tools and chargers. It adds: “With the convenience of universal battery compatibility, you can use any size battery for any tool in the EGO POWER+ lineup.” That is a strong statement, but it covers the EGO POWER+ line only. It says nothing about tools from other brands.

For a reader with mixed brands, the EGO statement is a useful model of how a maker states fit: it names its own line and stops there. Apply the same check to the wording on any page you read, and do not extend the claim beyond the named line.

Three rules, three scopes

The three maker statements look alike, but each one has a different scope, and the scope decides what you can conclude.

  • EGO’s rule covers one line. Any size EGO POWER+ battery is stated to work with any EGO POWER+ tool. Nothing on that page reaches a tool from another maker.
  • DeWalt’s rule covers one adapter and one voltage pairing. Most 20V batteries are stated to work in 18V tools through the DCA1820 adapter. The 20V MAX packs are excluded, and the page’s list of exceptions governs the rest.
  • Husqvarna’s rule covers an alliance. The 18V POWER FOR ALL battery is stated to work across the alliance. The rule reaches only the members the page names, and the page gives no full list.

In each case the statement is about the maker’s own system. None of the three says that a battery from a different system will work in a tool outside that system.

How to check a specific battery and tool pair

  1. Name the battery’s maker and platform. Write down the maker and the battery line, such as a 20V battery or a 56V ARC Lithium pack.
  2. Name the tool’s maker. If the battery and the tool come from different makers, the fit question is a cross-brand question, and the sources in this guide do not answer it for most pairs.
  3. Open the maker’s compatibility page. Use the maker’s own page or the tool’s manual, not a retail listing.
  4. Read the exceptions. The DeWalt adapter page is a clear example of a list that carves out models and battery types.
  5. If no page covers the pair, treat it as unverified. Do not assume the battery works, and do not use a battery on a tool the maker does not list.

Keep a note of the page, its address and the date you read it for each pair you check. A maker can change a compatibility list, and a dated note shows which version of the rule you relied on.

Compatibility and the mower you are buying

If you already own a battery, the question comes up when you buy a new mower or trimmer. Before you assume the pack you have will run a tool from another maker, check that maker’s page for that tool, and check whether the tool is sold with a battery and a charger.

For a DeWalt leaf blower battery question, read battery for a DeWalt leaf blower. For battery and charger pairs on other brands, read Black and Decker hedge trimmer battery and charger and Worx hedge trimmer battery and charger.

How we chose

We opened eight pages for this question and cite six. We chose each maker’s own compatibility or product pages. Those were DeWalt’s adapter support page, EGO’s battery page and Husqvarna’s POWER FOR ALL page. We added DeWalt’s safety article, OSHA and EPA for storage and damage points. We did not use retail listings, review sites or blogs. The pages were opened on 2026-10-22. The Husqvarna page is a UK locale page, cited because the US pages we opened do not cover the alliance. The sources are not ranked against each other. Two of the six cited pages are DeWalt pages, which reflects the adapter question in this post rather than a weighting of makers.

What we could not verify

The DeWalt adapter page lists exceptions by model and battery type, and this guide does not check each listed model against a specific tool. The Husqvarna page names some alliance members but not all of them, so a brand missing from the page is not confirmed. The Ryobi battery pages we opened state no cross-brand rule, so no Ryobi or Milwaukee statement appears here. We also could not verify whether alliance members share a charger or a battery specification, because the Husqvarna page we opened does not give that detail. The Husqvarna statement sits on a UK locale page, and this guide does not confirm how it applies on a US product page.

What the sources do not say

  • The sources do not say whether a battery from one brand fits or runs a tool from another brand outside the Husqvarna alliance.
  • The sources do not give a compatibility rule for Ryobi, Milwaukee or any maker other than EGO, DeWalt and Husqvarna.
  • The sources do not say what the warranty covers when a battery is used on a tool from another maker.
  • The sources do not give a list of the Bosch or Husqvarna tools that work with the POWER FOR ALL battery.

FAQ

Can you use a battery from a different brand in a cordless tool?

The sources we opened do not give a general yes. EGO, DeWalt and Husqvarna each state fit for their own tools or their own alliance. The Husqvarna alliance is the only cross-brand statement, and its brand list is not complete on the page.

If your battery and tool come from different makers outside those statements, check the maker’s compatibility page before you use the pack.

Does a same-brand battery always fit every tool from that brand?

No. DeWalt’s adapter page lists exceptions, and it says the adapter should not be used with certain premium 20V packs in two compact drills. EGO’s statement is broad, but it covers EGO POWER+ tools and batteries only.

What does the POWER FOR ALL alliance mean for a buyer?

It means that the Husqvarna 18V POWER FOR ALL battery works across the alliance, and the page names Bosch and Husqvarna Aspire as members. A tool from a brand the page does not name is not covered by this source, so check the brand against the named members before you buy.

Is a battery adapter a safe way to use a different battery?

The sources do not say that adapters are safe in general. DeWalt’s adapter page covers only its own DCA1820 adapter for the tools it lists. DeWalt’s safety article says to use only authentic DEWALT batteries for safe compatibility with its tools and chargers, so use an adapter only where the maker lists it for that tool.

Does the EGO statement mean any EGO battery works in any EGO tool?

EGO’s page says you can use any size battery for any tool in the EGO POWER+ lineup. That is the maker’s statement for its own line. It does not cover tools from other brands, and it does not tell you about run time, which depends on the tool and the work.

What should I do if no source covers my battery and tool?

Treat the pair as unverified. Do not assume it fits, and do not use the battery on that tool until the maker’s compatibility page or the tool’s manual lists it. Keep the pack stored in a cool, dry place as the maker and EPA describe.

Bottom line

Use a battery only on a tool that its maker’s compatibility page lists. For a brand pair that no page covers, treat the fit as unverified and do not assume it works.

Sources

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