Buying task · Cordless and battery platforms
Cordless polishers and battery platforms
Cordless polishers run on closed battery platforms: why the same voltage is not the same pack, what 'tool only' means and which charger rules the makers give.
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Short answer
A cordless polisher belongs to one battery platform, and only that maker's packs and chargers for that platform are stated to fit.[1][2] A battery fits a platform, not a voltage number: two "18 V" packs from different brands, or even from different product lines of one brand, are not interchangeable. If you already own tools on a platform, start there; if not, budget for the tool, genuine batteries and the maker's charger together.
How battery platforms work
Each maker designs a closed system of tools, packs and chargers:
| Maker | What it says fits |
|---|---|
| Makita | 12V max CXT with CXT tools, 18V LXT with LXT tools (including 18V X2 tools), 40V max XGT with XGT tools[1] |
| Milwaukee | Interchangeable within a system, not across: M12 with M12, M18 with M18, MX FUEL with MX FUEL[2] |
| Milwaukee 2684-20 and 2685-20 polishers | All M18 REDLITHIUM batteries and chargers, at 18 V DC[3] |
| FLEX (US kit 459542) | XFE 15 polisher with two 18 V 5.0 Ah FLEX batteries and a FLEX charger[4] |
| RUPES | HLR75 mini on its own 18 V 2.5 Ah pack and dedicated charger; HLR15 and HLR21 on an 18 V 5 Ah pack[5][6] |
The RUPES row shows why the voltage number is not enough: both packs are 18 V, but RUPES describes them as separate systems. Labels can mislead too. DEWALT's footnote says 20V MAX means a maximum initial voltage of 20 V without load and a nominal voltage of 18 V.[7]
The decisions, in order
1. Corded or cordless. Cordless frees you from the cord but ties you to a battery platform and a runtime. RUPES, for example, rates the HLR75 at about 35-45 minutes per pack, or continuous running with its iBrid power adapter.[5] The corded vs cordless guide weighs both.
2. Which platform. If you own tools on a platform already, a polisher on the same platform shares your packs and charger. Do not plan on adapters between brands: the makers we checked state compatibility only within their own platform.
3. Kit or bare tool. A bare tool (often sold as "tool only") has no battery or charger. Makita sells the XOP02Z this way,[8] and Milwaukee's polishers are listed as bare tools with batteries and chargers separate.[3]
4. Genuine packs and the right charger. Milwaukee's manual says to recharge only with the charger the manufacturer specifies, because a charger suitable for one battery type may create a fire risk with another, and to use only specifically designated battery packs.[9] Makita says its 18V Rapid Optimum Charger cannot charge its 7.2V, 12V max or 36V lithium-ion batteries.[1]
Every page in this topic
Guides
- Corded vs cordless polisher: runtime, platforms and power
- Cordless polisher battery compatibility by platform
- 20V MAX vs 18V: what the battery labels mean
- Genuine vs aftermarket tool batteries and chargers
- Lithium-ion tool battery safety: charging, damage and shipping
Shortlist
Polisher type pages
Motion, throw and pad size are covered in the car polishers overview.
How to choose
- List the platforms you already own. That is usually the right one.
- Check the platform name, not the voltage, on the polisher, the packs and the charger.
- Add genuine packs and the maker's charger to a tool-only purchase.
The XOP02Z is Makita's 18V LXT brushless 5-inch/6-inch dual-action polisher, sold tool only, with a selectable forced-rotation or free-spin mode.[8]
Next
Everything in this topic
Guides
- 20V MAX vs 18V batteriesStops you choosing a cordless polisher or battery on the voltage label, and points you to the platform name instead.
- Corded vs cordless polisherHelps you decide between a corded and a cordless polisher based on runtime, the battery platform you own and where you polish.
- Cordless polisher battery compatibilityTells you which batteries and chargers a cordless polisher can use, so you buy into the right platform or reuse the packs you have.
- Genuine vs aftermarket tool batteriesHelps you avoid counterfeit or third-party batteries and chargers for a cordless polisher, and buy genuine packs from a seller you can check.
- Lithium-ion tool battery safetyGives you the charging, storage, damage and shipping rules for cordless polisher packs from regulators and tool makers.
Shortlists
- Cordless polishers by battery platformMatches a cordless polisher to the battery platform you already own and explains what else you need to buy.
Common questions
Is 20V MAX more powerful than 18V?
Not by the label. DEWALT says its 20V MAX packs reach 20 volts maximum initial voltage without a load, and that their nominal voltage is 18. More in 20V MAX vs 18V batteries
Can I use a 20V MAX battery in an 18V tool?
Not across brands. Milwaukee and Makita each say their batteries work only within their own platforms, whatever the voltage on the label. More in 20V MAX vs 18V batteries
Are Makita 18V and 40V batteries interchangeable?
No. Makita says 18V LXT batteries go with LXT tools and 40V max XGT batteries with XGT tools. More in 20V MAX vs 18V batteries
Does the M18 battery fit M12 tools?
No. Milwaukee says M12 tools take M12 REDLITHIUM packs and M18 tools take M18 REDLITHIUM packs. More in 20V MAX vs 18V batteries
How long does a cordless polisher battery last?
It depends on the tool and pack. RUPES rates its HLR15 and HLR21 for up to 40 minutes at full power on an 18 V 5 Ah pack, and its HLR75 mini for about 35-45 minutes on its 2.5 Ah pack. These are maker figures. More in Corded vs cordless polisher
Can a cordless polisher also run on a cord?
Some can. RUPES's iBrid HLR15 and HLR21 run cordless or corded, and the HLR75 runs continuously with RUPES's iBrid Power Adapter. More in Corded vs cordless polisher
Does a bare-tool polisher include a battery?
No. Milwaukee's '-20' polishers are bare tools, and Makita sells the XOP02Z tool only. Battery and charger are separate. More in Corded vs cordless polisher
Can I use my drill battery in a polisher?
Yes, if both are on the same platform from the same maker. Makita says its batteries work only within each platform, and Milwaukee's polishers take M18 REDLITHIUM packs. More in Corded vs cordless polisher
Questions
Will any 18 V battery fit my cordless polisher?
No. Makers say batteries fit within their own platform: Makita says 18V LXT batteries go with LXT tools, and Milwaukee says M18 tools take M18 REDLITHIUM batteries. Even within one brand, RUPES uses different pack systems for its 18 V HLR75 and HLR15/HLR21 polishers.[1][2][5][6]
Is 20V MAX more powerful than 18 V?
Not by the label. DEWALT's own footnote says 20V MAX is the maximum initial voltage without a load and the nominal voltage is 18 V.[7]
What does 'tool only' or 'bare tool' mean?
The battery and charger are not in the box. Makita sells the XOP02Z polisher tool only, and Milwaukee's '-20' polishers are sold the same way.[8][3]
Can I use a universal charger for my tool batteries?
Milwaukee's manual says to recharge only with the charger the manufacturer specifies, because a charger suitable for one battery type may create a fire risk with another.[9]